I do sometimes wonder whether there's something else going on with this JK Rowling situation, but I can't quite put my finger on it.
The stories were very powerful to an entire generation, and I've wondered whether it's because they deal, essentially, with confronting your worst fears at the same time as going through puberty. One thing I notice about Harry Potter is that it deals with that sense of "being special" within a small ontology, only to work through and confront your demons to become a well-rounded and valuable member of society.
It's as though Harry Potter is a metaphor for puberty and teen growth and development, in some respects. 🤔
And, of course, this kind of narrative goes against certain accepted tenets of the gender movement.