Quoting from two sermons given last Friday at Islamic centers in California, Liel Leibovitz argues that it’s time for those who claim to oppose bigotry to start protesting anti-Semitic incitement in U.S. mosques:

The Egyptian-born American imam Ammar Shahin took to the pulpit at the Islamic Center of Davis, California, to deliver some words to the faithful. . . . “The Prophet Muhammad says that . . . the last hour will not take place until the Muslims fight the Jews. We don’t say if it is in Palestine or another place. Until they fight.”

Shahin went on like this for a while longer. Then, he closed his eyes and addressed the Creator directly.

“Oh Allah,” he prayed, . . . “liberate the al-Aqsa Mosque from the filth of the Jews. . . . Oh Allah, show us the black day that you inflict upon them and the wonders of your ability. Oh Allah, count them one by one and annihilate them down to the very last one. Do not spare any one. . . . Oh Allah, make this happen by our hand. Let us play a part in this.”

At more or less the same time, another imam, Sheikh Mahmoud Harmoush, was preaching at another Islamic Center, in Riverside, 451 miles to the south. . . . “Wake up,” he thundered, “it is time to be a Muslim. Prayers are not the only things.” And then, after more talk of al-Aqsa and its Jewish occupiers, the grand finale: “Oh, Allah, destroy them. . . . Turn them into booty in the hands of Muslims.”

That these two sermons, oozing with anti-Semitism of the crudest kind, could take place, in 2017, in the state of California, should terrify not only Jews but also Muslims who abhor the idea of their faith abused by fanatics who turn scripture into screeds and who use the pulpit to preach for murder. It should also jolt good liberals into action, as they imagine how they would feel if the speakers were, say, right-wing Evangelicals calling on Christ to smite the gays. And it should rouse the ADL into action, if it wants to dispel the mounting evidence that it’s a Democratic-party affiliate primarily interested in ephemeral political scuffles rather than in protecting real Jews from real hate.

All this must happen immediately, before one of the men who sat at the feet of Imams Shahin and Harmoush gets up and decides that the day of reckoning is upon us and that it’s time to do as Allah commands and go slay the Jews.

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.