In modern times, many American Jews believed that the United States had left behind this tradition, with some reason. But as Conor Cruise O’Brien, an Irish writer and politician, noted, “Antisemitism is a light sleeper.” It tends to re-emerge when societies become polarized and people go looking for somebody to blame. This pattern helps explain why antisemitism began rising, first in Europe and then in the United States, in the 2010s, around the same time that politics coarsened. The anger pulsing through society has manifested itself through animosity toward Jews.
The political right, including President Trump, deserves substantial blame. Yes, he has led a government crackdown against antisemitism on college campuses, and that crackdown has caused colleges to become more serious about addressing the problem. But Mr. Trump has also used the subject as a pretext for his broader campaign against the independence of higher education. The combination risks turning antisemitism into yet another partisan issue, encouraging opponents to dismiss it as one of his invented realities.
Even worse, Mr. Trump had made it normal to hate, by using bigoted language about a range of groups, including immigrants, women and trans Americans. Since he entered the political scene, attacks on Asian, Black, Latino and L.G.B.T. Americans have spiked, according to the F.B.I. While he claims to deplore antisemitism, his actions tell a different story. He has dined with a Holocaust denier, and his Republican Party has nominated antisemites for elected offices, including governor of North Carolina. Mr. Trump himself praised as “very fine people” the attendees of a 2017 march in Charlottesville, Va., that featured the chant “Jews will not replace us.” On Jan. 6, 2021, at least one rioter attacking the Capitol screamed that he was looking for “the big Jew,” referring to Senator Chuck Schumer of New York, Mr. Schumer has said.
The problem extends to popular culture. Joe Rogan, the podcaster who endorsed Mr. Trump last year, has hosted Holocaust conspiracy theorists on his show. Mr. Rogan once said of Jews, “They run everything.” In the Trumpist right, antisemitism has a home.
It also has a home on the progressive left, and the bipartisan nature of the problem has helped make it distinct. Progressives reject many other forms of hate even as some tolerate antisemitism. College campuses, where Jewish students can face social ostracization, have become the clearest example. A decade ago, members of the student government at U.C.L.A. debated blocking a Jewish student from a leadership post, claiming that she might not be able to represent the entire community. In 2018, spray-painted swastikas appeared on walls at Columbia. At Baruch, Drexel and the University of Pittsburgh, activists have recently called for administrators to cut ties with or close Hillel groups, which support Jewish life. In a national survey by Eitan Hersh of Tufts University and Dahlia Lyss, college students who identified as liberal were more likely than either moderates or conservatives last year to say that they “avoid Jews because of their views.”