I will begin with a couple of paragraphs about Eurovision, the annual international song contest that I wrote about here the other day, but rest assured that this is not going to be another essay about that fatuous event, which, as I strove to point out in that earlier piece, is virtually worthless as a cultural offering but, as a social barometer, can provide fascinating insights. As I noted, the continent’s anti-Semites and Hamas-lovers were outraged at the refusal of Eurovision authorities to ban Israel, a longtime participant, from this year’s competition because of its current actions in Gaza, which...