Thursday night, after years of causing controversy, the Brooklyn Nets’ Kyrie Irving issued a rare apology. It wasn’t about his history of endorsing anti-vaccine misinformation or for the time he shared a video containing a rant from noted conspiracy theorist Alex Jones. No, Irving’s apology — a block of text posted alongside a black square on Instagram — stemmed from a more recent controversy, in which he was accused of promoting antisemitism after he tweeted a link to the Amazon page for “Hebrews to Negroes: Wake Up Black America.” It’s a 2018 documentary that, among other things, claims that Jewish...