…Was never with black Hermione. It was Rowling and other’s response to it. There is quite obviously nothing wrong with wanting a character to look the way you imagine the character to look. Personally I really don’t care; stage plays aren’t movies, and there’s a long tradition of race-bending in stage shows. But if you’d prefer the character look the same way she does in your head, and how she’s obviously presented in the books, well, how is that unreasonable.
But here’s Rowling going on the record and saying “Haha, suckers! I never technically said Hermione was black! WHO’S RACIST NOW!!!!”. This despite the fact that the non-white characters in the book are always specified as non-white, and “Hermione Granger” is as white a name as white can be, and Rowling has sketches SHE DID of Hermione shown as white, and Rowling had a ton creative control of the movies and Emma Watson is white, and Hermione is described as pale several times in the books.
It’s bullshit. It was obvious Hermione was white, always obvious Hermione was white, and going on the record and claiming it was never part of her “official” character description or something is a lie. If Rowling had just said “I have no issue with Hermione being black, I’m sure the actor will do great!” that’s one thing. But Rowling worded it in a way that implied that anybody who assumed Hermione was black was a closet racist or something, or at the very least stuck in some bullshit world of white privilege.
And that pissed people off, hence the reactions being stronger than might be expected. Fuck that shit. Hermione’s not black, and everyone knows it – including J.K. Rowling.