James Kirkup writes in Spectator about how JKR’s tweet has signicantly amplified this debate. He talks about the threat to freedom of speech and the bullying which those who speak out face. Great article
Several commentators have concluded that amounts to a judicial prohibition on women stating that people who were born male and who have male anatomy are men, if those people describe themselves as women. I’ll leave it to readers to draw their own conclusions about what that means for free expression and the debate of ideas