The confluence of developments in medical knowledge and military technology enabled doctors to learn a great deal about surgery during the American Civil War. Since, at the war’s outset, very few physicians had any experience treating gunshot wounds, P.J. Horwitz—a Jew from Baltimore and the Union navy’s surgeon general—authored a brief manual on the subject. Here are two excerpts:

Gunshot wounds include all injuries produced by firearms, and partake of the nature both of contused and lacerated wounds. The symptoms of a gunshot wound vary with the parts injured. When the wound is merely fleshy, and the mind of the individual wounded is not directed to the injury, the pain and inconvenience may be so inconsiderable as not to attract his notice, till his attention is called to his condition by the bystanders, or by some circumstances not connected with his injury. . . .

If on first seeing a patient who is wounded he is found to be much prostrated, the best thing to do is to try and soothe him by an encouraging manner, and assurances of his speedy recovery, and at the same to administer such stimulus as he requires, such as brandy and water, a little wine water and ammonia if necessary. Should he complain of much pain, a little laudanum would be serviceable; sometimes also an external warmth may be required.

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.