In September of last year, Columbia University hosted Mahathir Mohamad—who served as Malaysia’s prime minister from 1981 to 2003 and returned to the office in 2018—as part of its World Leaders Forum. This year, Mahathir is expected to host the American president in Kuala Lumpur. Mahathir’s virulent anti-Semitism, notes Isaac Herzog, has never stopped democratic countries or their institutions from giving him this sort of respect—and he doesn’t even attempt to dress up his hatred of Jews as criticism of Israel:

This is a man who openly touts his anti-Semitism, repeatedly claiming Jews “are not merely hook-nosed, but understand money instinctively.” [He] has distributed copies of The International Jew—an anti-Semitic diatribe that had a key influence on the Nazis and is still banned in Germany—to his party members. Nevertheless, President Barack Obama and his wife Michelle recently visited Malaysia for the Obama Foundation’s inaugural Asia Pacific leaders gathering from December 10-14.

With over 60 percent of its population harboring negative opinions of Jews, Malaysia has the highest rate of anti-Semitic views in Asia, [excluding the Middle East]. This is despite the fact that Malaysia has no geographic proximity to Israel, has never had any conflict with Israel, and does not have many Jewish citizens—the last reported to have fled due to anti-Semitism in the early 1980s.

But the most troubling aspect of the Malaysian example is the warm welcome Mahathir receives around the world. The welcome mat has been rolled out for him time and again in global cities, top universities, and leading media outlets. Time magazine has even named him on its 2019 list of the world’s 100 most influential people for his “core values.”

While the events attended by Presidents Obama and Trump in Malaysia are important global forums, America’s leaders and their counterparts worldwide must at a minimum adhere to and reaffirm their commitment to fighting and condemning Mahathir’s anti-Semitism.

Two extraordinary events demonstrate something important about Israel’s most fervent adversaries. One was a speech given at something called The People’s Forum (funded generously by Goldman Sachs), which stated, “When the state of Israel is finally destroyed and erased from history, that will be the single most important blow we can give to destroying capitalism and imperialism.”

The suggestion that this tiny state is the linchpin of a global, centuries-old phenomenon like capitalism goes well beyond anything resembling rational criticism. Even if Israel were guilty of genocide, apartheid, and oppression—which of course it is not—it would not follow that its destruction would help end capitalism or imperialism.

The other was an anti-Israel protest that took place in front of New York City’s Memorial Sloan Kettering Cancer Center, deemed “complicit” in Israel’s evils. At organizers’ urging, participants shouted their slogans at kids in the cancer ward, who were watching from the windows. Given Hamas’s indifference toward the lives of Gazan children, such callousness toward non-Palestinian children from Hamas’s Western allies shouldn’t be surprising. The protest—like the abovementioned speech—deliberately conveyed the message that Israel is the ultimate evil and its destruction the ultimate good, cancer patients be damned.

The fact that Israel’s adversaries are almost comically perverse does not mean that they can be dismissed. If its allies fail to understand the obsessive and irrational hatred that it faces, they cannot effectively help it defend itself.