Usually, when Martin Luther King’s words are misappropriated, the culprits are misinformation mercenaries trying to advance some right-wing idea that is light years away from King’s ideology, Their favorite is King’s “I Have A Dream” speech, in which King said people should be judged by “the content of their character” and not “the color of their skin,” poetic phrases perversely twisted to pretend that King would have fought against something as righteous as affirmative action. So when video of King surfaced online last week denouncing antisemitism and backing Israel’s right to exist, the source and the timing put a lot...