In 2002—at the height of the second intifada—the Israeli navy intercepted the Karina A, a Lebanese vessel carrying 50 tons of Iranian arms to the Palestine Liberation Organization (PLO). But Yasir Arafat’s relationship with the Islamic Republic goes much farther back, to before its founding in 1979. The terrorist leader had forged ties with followers of Ayatollah Ruhollah Khomeini that grew especially strong in the years when Lebanon became a base of operations both for Iranian opponents of the shah and for the PLO itself. Tony Badran writes:

The relationship between the Iranian revolutionary factions and the Palestinians began in the late 1960s, in parallel with Arafat’s own rise in preeminence within the PLO. . . . [D]uring the 1970s, Lebanon became the site where the major part of the Iranian revolutionaries’ encounter with the Palestinians played out. . . .

The number of guerrillas that trained in Lebanon with the Palestinians was not particularly large. But the Iranian cadres in Lebanon learned useful skills and procured weapons and equipment, which they smuggled back into Iran. . . . The PLO established close working ties with the Khomeinist faction. . . . [W]orking [especially] closely with the PLO [was] Mohammad Montazeri, son of the senior cleric Ayatollah Hossein-Ali Montazeri and a militant who had a leading role in developing the idea of establishing the Islamic Revolutionary Guard Corps (IRGC) once the revolution was won.

The Lebanese terrorist and PLO operative Anis Naccache, who coordinated with [the] Iranian revolutionaries, . . . takes personal credit for the idea. Naccache claims that Jalaleddin Farsi, [a leading Iranian revolutionary], approached him specifically and asked him directly to draft the plan to form the main pillar of the Khomeinist regime. The formation of the IRGC may well be the greatest single contribution that the PLO made to the Iranian revolution. . . .

Arafat’s fantasy of pulling the strings and balancing the Iranians and the Arabs in a grand anti-Israel camp of regional states never stood much of a chance. However, his wish to see Iran back the Palestinian armed struggle is now a fact, as Tehran has effectively become the principal, if not the only, sponsor of the Palestinian military option though its direct sponsorship of Islamic Jihad and its sustaining strategic and organizational ties with Hamas. By forging ties with the Khomeinists, Arafat unwittingly helped to achieve the very opposite of his dream. Iran has turned [two] Palestinian factions into its proxies, and the PLO has been relegated to the regional sidelines.

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.