The great historian Paul Johnson, whose many works include a one-volume history of the Jews, celebrates his ninetieth birthday today. His 2005 reflections on anti-Semitism remain as wise, and sadly as relevant, as ever:

It is widely assumed . . . that anti-Semitism is a form of racism or ethnic xenophobia. . . . But if anti-Semitism is a variety of racism, it is a most peculiar variety, with many unique characteristics. In my view as a historian, it is so peculiar that it deserves to be placed in a quite different category. I would call it an intellectual disease, a disease of the mind, extremely infectious and massively destructive. It is a disease to which both human individuals and entire human societies are prone. . . .

[Some of] the first recorded instances of anti-Semitism date from the 3rd century BCE, in Alexandria. Subsequent historical shifts have not ended anti-Semitism but merely superimposed additional archaeological layers, as it were. To the anti-Semitism of antiquity was added the Christian layer and then, from the time of the Enlightenment on, the secularist layer, which culminated in Soviet anti-Semitism and the Nazi atrocities of the first half of the 20th century. Now we have the Arab-Muslim layer, dating roughly from the 1920s but becoming more intense with each decade since.

What strikes the historian surveying anti-Semitism worldwide over more than two millennia is its fundamental irrationality. It seems to make no sense, any more than malaria or meningitis makes sense. In the whole of history, it is hard to point to a single occasion when a wave of anti-Semitism was provoked by a real Jewish threat (as opposed to an imaginary one). In Japan, anti-Semitism was and remains common even though there has never been a Jewish community there of any size.

Asked to explain why they hate Jews, anti-Semites contradict themselves. Jews are always showing off; they are hermetic and secretive. They will not assimilate; they assimilate only too well. They are too religious; they are too materialistic, and a threat to religion. They are uncultured; they have too much culture. They avoid manual work; they work too hard. They are miserly; they are ostentatious spenders. They are inveterate capitalists; they are born Communists. And so on. In all its myriad manifestations, the language of anti-Semitism through the ages is a dictionary of non-sequiturs and antonyms, a thesaurus of illogic and inconsistency. . . .

What is in any case clear is that anti-Semitism, besides being self-inflicted, is also self-destructive, and of societies and governments as much as of individuals.

For some time, opponents of U.S support for Israel have been urging the White House to end the war in Gaza, or simply calling for a ceasefire. Douglas Feith and Lewis Libby consider what such a result would actually entail:

Ending the war immediately would allow Hamas to survive and retain military and governing power. Leaving it in the area containing the Sinai-Gaza smuggling routes would ensure that Hamas can rearm. This is why Hamas leaders now plead for a ceasefire. A ceasefire will provide some relief for Gazans today, but a prolonged ceasefire will preserve Hamas’s bloody oppression of Gaza and make future wars with Israel inevitable.

For most Gazans, even when there is no hot war, Hamas’s dictatorship is a nightmarish tyranny. Hamas rule features the torture and murder of regime opponents, official corruption, extremist indoctrination of children, and misery for the population in general. Hamas diverts foreign aid and other resources from proper uses; instead of improving life for the mass of the people, it uses the funds to fight against Palestinians and Israelis.

Moreover, a Hamas-affiliated website warned Gazans last month against cooperating with Israel in securing and delivering the truckloads of aid flowing into the Strip. It promised to deal with those who do with “an iron fist.” In other words, if Hamas remains in power, it will begin torturing, imprisoning, or murdering those it deems collaborators the moment the war ends. Thereafter, Hamas will begin planning its next attack on Israel:

Hamas’s goals are to overshadow the Palestinian Authority, win control of the West Bank, and establish Hamas leadership over the Palestinian revolution. Hamas’s ultimate aim is to spark a regional war to obliterate Israel and, as Hamas leaders steadfastly maintain, fulfill a Quranic vision of killing all Jews.

Hamas planned for corpses of Palestinian babies and mothers to serve as the mainspring of its October 7 war plan. Hamas calculated it could survive a war against a superior Israeli force and energize enemies of Israel around the world. The key to both aims was arranging for grievous Palestinian civilian losses. . . . That element of Hamas’s war plan is working impressively.