@TheIncredibleBookEatingManchot
I wonder what people accusing JKR of anti-Semitism think of her agent, Neil Blair, who is Jewish.
He has tweeted that she is definitely not anti-Semitic.
So if a Jewish person who presumably knows her well and has worked with her for years doesn't think she's anti-Semitic then why not take his word for it?
I don't think it actually matters to people. Same with saying it about Emma Watson.
The logic of id pol and political whiteness is that everyone is racist, antisemitic, whatever. It doesn't matter if you also stand against those things, or "have Jewish friends" or anything. If what you say or write or do can be linked in any way, even only in terms of an accidental resemblance, to a particular form of oppression, than you are promoting a racist system and the only only way to be morally ok is to wholesale repudiate it and make a show of toeing the line, particularly calling out other people engaging in wrongthink.
JKR is a particular target not just because of her views on trans issues but because she does not respect that whole system, therefore calling it's moral dominance and power into question. She is, in the truest sense, not politically correct.