So there's just been a "discussion" on French radio station France Inter about JKR. No look at what she actually said, just a statement of fact that she sent an anti-Trans tweet. Apparently there's been a big reduction in Harry Potter sales compared with what might be expected at this time of year. They mentioned the "cancellation culture" for people who have "retrograde views", and that fans were anyway pissed off with her for insisting on controlling the Harry Potter world by writing sequels, which prevented them from imagining it for themselves.
I'd put money on the person reporting it never having read the tweet.