Over the past several weeks, Americans have witnessed what has seemed like a mass outpouring of support for terror on elite college campuses. At Columbia, Yale, Princeton, NYU, UCLA, Northwestern, Texas, and elsewhere, masked mobs have occupied schools with tent encampments, established self-proclaimed “autonomous zones,” clashed with police, harassed and threatened visibly Jewish students, and issued demands for their universities to divest from Israeli “genocide.” Politically, moreover, the protests have displayed an incoherent mix of campus progressivism, hardcore Islamism and Arab nationalism, and revolutionary anarchism and communism, including open praise for North Korea. The only unifying thread would appear to be opposition to Israel and its alleged imperial patron, the United States.

Have America’s college students suddenly converted en masse to anarcho-communist-jihadism? Not quite. Many are far left and anti-Israel. Some are foreigners, or the children of foreigners, who have imported the conspiracies and hatreds of their homelands. More, admitted under relaxed pandemic-era admissions standards and proudly ignorant of both American and world history, are taking the “decolonial” half-knowledge pushed by their elders to its logical conclusion.

But students are not the only, and perhaps not even the most important, faction active in the campus protests. As in the “mostly peaceful” Black Lives Matter protests of the summer of 2020, “outside agitators”—professional radicals and organizers, black bloc antifa thugs, Marxist-Leninist revolutionaries, and Palestinian and Islamist radicals—have played a central role in organizing and escalating the campus protests, just as they have organized and escalated the wider anti-Israel protest campaign that began almost immediately after Oct. 7. This largely decentralized network of agitators is, in turn, politically and financially supported by a vast web of progressive nonprofits, NGOs, foundations, and dark-money groups ultimately backed by big-money donors aligned with the Democratic Party. ...