J.K. Rowling's new book, The Ink Black Heart, features a storyline about creator who was doxxed by her own fandom over content viewers found transphobic and racist.
Normally I try to give writers a pass when they use the old "black = bad" because the intent is rarely racist and only sometimes unintentionally has subtext that implies that, but in Rowling's case, she may not deserve that pass considering her laughably dated patronizing attitude toward Native Americans in her HP spinoff series where not a single tribe or its survivors had any meaningful input in what was supposed to be a magic school based upon old timey stereotypes that the author knew and made no further inquiry before appropriating them. She may as well made them pat their hands over their mouths while making war whoops.
There was also, of course, that horribly-named Chinese character, among other offenses.
I'm not saying the villain with the "black" heart is black in her book. I don't know. But with what she's put out so far, it's more likely there's no meaningful black people at all.