Of all of President-elect Donald Trump’s choices for his foreign policy team, Marco Rubio is the least controversial to the neoconservative foreign policy establishment in Washington, DC. He is the most certain to provide continuity with all that is wrong with United States foreign policy, from Cuba to the Middle East to China.

The only area where there might be some hope for ending a war is Ukraine. Rubio has come close to Trump’s position on that matter, praising Ukraine for standing up to Russia, but recognizing that the US is funding a deadly “stalemate war” that needs to be “brought to a conclusion.”

But in all the other hotspots around the world, Rubio is likely to make conflicts even hotter, or start new ones. Here are eight reasons why he would make a dangerous secretary of state:

Rubio’s obsession with Cuban regime change will sink any chance of better relations there

Like other Cuban-American politicians, Rubio has built his career on vilifying the Cuban Revolution and trying to economically strangle and starve the people of his parents’ homeland into submission.

It is ironic, therefore, that his parents left Cuba before the Revolution, during the US-backed dictatorship of Fulgencio Batista. Batista’s executioners, secret police and death squads killed an estimated 20,000 people, leading to a wildly popular revolution in 1959.

When President Barack Obama began to restore relations with Cuba in 2014, Rubio swore to do “everything possible” to obstruct and reverse that policy. In May 2024, Rubio reiterated his zero-tolerance for any kind of social or economic contacts between the US and Cuba, claiming that any easing of the US blockade will only “strengthen the oppressive regime and undermine the opposition… Until there is freedom in Cuba, the United States must maintain a firm stance.” Two months earlier, Rubio introduced legislation to ensure that Cuba would remain on the US “State Sponsor of Terrorism List,” imposing sanctions that cut Cuba off from the US-dominated Western banking system.

These measures to destroy the Cuban economy have led to a massive wave of migration in the past two years. But when the US Coast Guard tried to coordinate with their Cuban counterparts, Rubio introduced legislation to prohibit such interaction. While Trump has vowed to stem immigration, his secretary of state wants to crush Cuba’s economy, forcing people to abandon the island and set sail for the US.

Applying Rubio’s anti-Cuba template to the rest of Latin America will make enemies of more of our neighbors

Rubio’s disdain for his ancestral home has served him so well as a US politician that he has extended it to the rest of Latin America. He has sided with extreme right-wing politicians like Argentinian President Javier Milei and former Brazilian President Jair Bolsonaro. He rails against progressive ones, from Brazilian President Luiz Inácio Lula da Silva to the popular Mexican former President López Obrador, whom he called “an apologist for tyranny” for supporting other leftist governments.

In Venezuela, Rubio has promoted brutal sanctions and regime change plots to topple the government of Nicolas Maduro. In 2019, he was one of the architects of Trump’s failed policy of recognizing opposition figure Juan Guaidó as president. He has also advocated for sanctions and regime change in Nicaragua.

In March 2023, Rubio urged President Joe Biden to impose sanctions on Bolivia for prosecuting  leaders of a 2019 US-backed coup that led to massacres that killed at least 21 people. He also condemned the government of Honduras for withdrawing from an extradition treaty with the US this past August. This was a response to decades of US interference that had turned Honduras into a narco-state riven by poverty, gang violence and mass emigration, until the election of democratic socialist President Xiomara Castro in January 2022.

Rubio’s major concern in this part of the world now seems to be the influence of China, which has become the second-largest trade partner of most Latin American countries. Unlike the US, China focuses on economic benefits and not internal politics. Meanwhile, US politicians like Rubio still see Latin America as the US’s “backyard.”

While Rubio’s virulent anti-leftist stands have served him well in climbing to senior positions in the US government, and now into Trump’s inner circle, his disdain for Latin American sovereignty bodes ill for US relations in the region.

Rubio insists that the US and Israel can do no wrong, and that God has given Palestine to Israel

Despite the massive death toll in Gaza and global condemnation of Israel’s genocide, Rubio still perpetuates the myth that “Israel takes extraordinary steps to avoid civilian losses” and that innocent people die in Gaza because Hamas has deliberately placed them in the way and used them as human shields. The problem, he says, is “an enemy that doesn’t value human life.”

In November 2024, when CODEPINK asked if Rubio would support a ceasefire, he replied, “On the contrary. I want them to destroy every element of Hamas they can get their hands on. These people are vicious animals.”

There are few times in this past year that the Biden administration has tried to restrain Israel, but when Biden begged Israel not to send troops into the southern city of Rafah, Rubio said that was like telling the Allied forces in World War II not to attack Berlin to get Adolf Hitler.

In a letter to Secretary of State Antony Blinken in August 2024, Rubio criticized the Biden administration’s decision to sanction Israeli settlers linked to anti-Palestinian violence in the occupied West Bank.

“Israel has consistently sought peace with the Palestinians. It is unfortunate that the Palestinians, whether it be the Palestinian Authority or FTOs [Foreign Terrorist Organisations] such as Hamas, have rejected such overtures,” Rubio wrote. “Israelis rightfully living in their historic homeland are not the impediment to peace; the Palestinians are,” he added.

No country besides Israel subscribes to the idea that its borders should be based on 2,000-year-old religious scriptures, and that it has a God-given right to displace or exterminate people who have lived there since then to reconquer its ancient homeland. The US will find itself extraordinarily isolated from the rest of the world if Rubio tries to assert that as a matter of US policy.

Rubio’s enmity toward Iran will fuel Israel’s war on its neighbors, and may lead the US to war

Rubio is obsessed with Iran. He claims that the central cause of violence and suffering in the Middle East is not Israeli policy but “Iran’s ambition to be a regional hegemonic power.” He says that Iran’s goal in the Middle East is to “seek to drive America out of the region and then destroy Israel.”

He has been a proponent of maximum pressure on Iran, including calls for more and more sanctions. He believes the US should not re-enter the Iran nuclear deal, saying: “We must not trade away U.S. and Israeli security for vague commitments from a terrorist-sponsoring regime that has killed Americans and threatens to annihilate Israel.”

Rubio calls Lebanon’s Hezbollah a “full blown agent of Iran right on Israel’s border” and claims that wiping out Hezbollah’s leadership, along with entire neighborhoods full of civilians, is a “service to humanity.” He alleges that Iran has control over Iraq, Syria and the Houthis in Yemen, and is a threat to Jordan. He claims that “Iran has put a noose around Israel,” and says the goal of US policy should be regime change in Iran. This would set the stage for war.

While there will hopefully be leaders in the Pentagon who will caution Trump about the perils of a war with Iran, Rubio will not be a voice of reason.

Rubio is beholden to big money, from the weapons industry to the Israel lobby

Rubio has reportedly received over $1 million in campaign contributions from pro-Israel groups during his career. The Pro-Israel America PAC was his single largest campaign contributor over the last five years. When he last ran for re-election in 2022, he was the third-largest recipient of funding by pro-Israel groups in the Senate, taking in $367,000 from them for that campaign.

Rubio was also the fourth-largest recipient of funding from the “defense” industry in the Senate for the 2022 cycle, receiving $196,000. Altogether, the weapons industry has invested $663,000 in his Congressional career.

Rubio is clearly beholden to the US arms industry. He’s even more beholden to the Israel lobby, which has been one of his largest sources of campaign funding. This has placed him in the vanguard of Congress’s blind, unconditional support for Israel and subservience to Israeli narratives and propaganda. Therefore, it is unlikely that he will ever challenge the ongoing extermination of the Palestinian people or their expulsion from their homeland.

Rubio is so antagonistic towards China that China has sanctioned him — twice

Speaking at the Heritage Foundation in 2022, Rubio said: “The gravest threat facing America today — it is the challenge that will define not just this century, but my generation and every generation represented here in this room today — that challenge is not climate change, it’s not the pandemic, it’s not the left’s version of social justice. The threat that will define this century is China.”

It will be hard for our nation’s “top diplomat” to ease tensions with a country he has so maligned. He antagonized China by co-sponsoring the Uyghur Forced Labor Prevention Act, which allows the US to bar Chinese imports over alleged Uyghur rights abuses — abuses that China denies and independent researchers question. In fact, Rubio has gone so far as to accuse China of a “grotesque campaign of genocide” against the Uyghurs.

On Taiwan, he has not only introduced legislation to increase military aid to the island, but actually supports Taiwanese independence — a dangerous deviation from the US government’s long-standing One China approach.

The Chinese responded to Rubio by sanctioning him, not once but twice: once regarding the Uyghurs and once for his support of Hong Kong protests. Unless China lifts the sanctions, he would be the first US secretary of state to be banned from even visiting China.

Analysts expect China to try to sidestep Rubio and engage directly with Trump and other senior officials. Steve Tsang, the director of the China Institute at the United Kingdom’s School of Oriental and African Studies, told Reuters, “If that doesn’t work, then I think we’re going to get into a much more regular escalation of a bad relationship.”

Rubio knows sanctions are a trap, but doesn’t know how to escape them

Rubio is a leading advocate of unilateral economic sanctions, which are illegal under international law, and which the UN and other countries refer to as “unilateral economic coercive measures.”

The US has used these measures so widely and wildly that they now impact a third of the world’s population. Officials from Treasury Secretary Janet Yellen to Rubio himself have warned that using the US financial system and the dollar’s reserve currency status as weapons against other countries is driving the rest of the world to conduct trade in other currencies and develop alternative financial systems.

In March 2023, Rubio complained on Fox News, “We won’t have to talk sanctions in five years, because there will be so many countries transacting in currencies other than the dollar that we won’t have the ability to sanction them.”

And yet Rubio has continued to be a leading sponsor of sanctions bills in the Senate. These include new sanctions on Iran in January 2024 and a bill in July to sanction foreign banks that participate in alternative financial systems.

While other countries develop new financial and trading systems to escape abusive, illegal US sanctions, the nominee for secretary of state remains caught in the same sanctions trap that he complained about on Fox.

Rubio wants to oppress US free speech

Rubio wants to curtail the right to free speech enshrined in the First Amendment of the US Constitution. In May, he described campus protests against Israel as a “complete breakdown of law and order.”

Rubio claimed to be speaking up for other students at US universities. “[They] paid a lot of money to go to these schools, [but are being disrupted by] a few thousand antisemitic zombies who have been brainwashed by two decades of indoctrination in the belief that the world is divided between victimizers and victims, and that the victimizers in this particular case, the ones that are oppressing people, are Jews in Israel,” Rubio said.

The Florida senator has said he supports Trump’s plan to deport foreign students who engage in pro-Palestinian campus protests. In April, he called for punishing supporters of the Israel boycott movement as part of efforts to counter antisemitism, falsely equating any attempt to respond to Israel’s international crimes with antisemitism.

And what about those crimes, which the students are protesting? After visiting Israel in May, Rubio wrote an article for National Review in which he never mentioned the thousands of civilians Israel has killed. He instead blamed Iran, Biden and “morally corrupt international institutions” for the crisis.

Rubio expects US citizens to believe that it is not genocide itself, but protests against genocide, that are a complete breakdown of law and order. He couldn’t be more wrong if he tried.

Students are not Rubio’s only target. In August 2023, he alleged that certain “far-left and antisemitic entities” may have violated the Foreign Assistance Registration Act by their ties to China. He called for a Justice Department investigation into 18 groups, starting with CODEPINK. These unfounded claims of Chinese connections are only meant to intimidate legitimate groups that are exercising their free speech rights.

Conclusion: Rubio is a dangerous choice for secretary of state.

On each of these issues, Rubio has shown no sign of understanding the difference between domestic politics and diplomacy. Whether he’s talking about Cuba, Palestine, Iran or China, or even about CODEPINK, all his supposedly tough positions are based on cynically mischaracterizing the actions and motivations of his enemies and then attacking the straw man he has falsely set up.

Unscrupulous politicians often get away with that, and Rubio is no exception. He has made it his signature tactic because it works so well for him in US politics. But that will not work if and when he sits down to negotiate with other world leaders as secretary of state.

His underlying attitude to foreign relations is, like Trump’s, that the US must get its way or else. Additionally, other countries who won’t submit must be coerced, threatened, couped, bombed or invaded. This makes Rubio just as ill-equipped as Blinken to conduct diplomacy, improve US relations with other countries or resolve disputes and conflicts peacefully, as the United Nations Charter requires.

[Lee Thompson-Kolar edited this piece.]

The views expressed in this article are the author’s own and do not necessarily reflect Fair Observer’s editorial policy.