In his early-20th-century memoir of immigration and Americanization, Marcus Ravage notes how much harder it was to keep track of the Jewish holidays in the New World than it was in the Old. But things became easier in the following decades with the advent of mass-produced Jewish calendars that included holidays and other important information. Jenna Weissman Joselit writes:

[Some] American Jews relied on their kosher butcher, the neighborhood grocer, and by the 1930s, the manufacturers of food products to keep them in the loop. Commercial interests, sensing an excellent opportunity to join community service and goodwill to profit, either commissioned a Jewish calendar or put their name to one already in production. What an artful way to flag time-sensitive products such as matzah for Passover, dairy products for Shavuot, flour for [baking challah for the] Sabbath.

B.C. Friedman and Sons Matzoh Bakery of Philadelphia clearly thought so. Purveyors of matzah meal, matzah farfel, and a distinctive form of unleavened bread called protein matzah—a product “recommended by doctors for those suffering with diabetes”—the company furnished its loyal customers with a “calendar booklet for 5700” (1939-1940). In the years that followed, the B. Manischewitz Co., Isidor Jacobson Wines and Liquors of Jackson Heights, New York, Drake’s Cakes, [and] the National Sugar Refining Company of New Jersey . . . made sure to keep their customers satisfied by offering their own, cost-free version, of the Jewish calendar, along with their best wishes for a “happy and prosperous New Year.” . . .

Although it nearly cornered the market, the commercialized Jewish calendar faced competition from another quarter: the National Federation of Temple Sisterhoods, the umbrella organization of Reform Jewish women, under whose aegis a decidedly more elevated approach to Jewish timekeeping—a “Jewish art calendar”—came into being. Intended to “Judaize the homes” of its members who had either grown rather lax in or increasingly indifferent to Jewish ceremonial life, it transformed the Jewish calendar from an exercise in consumerism into a vehicle of “religious consciousness,” heightening the appeal of Jewish rituals along the way.

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.