I mean, as much as I disagree with JK Rowling on a lot of things, I don't recall her wallowing in the mire that was 2010s politics, other than alogging Donald Trump a little bit. For the most part, all that shit was beneath her.
She's not remotely comparable to lib-feminists like Anita Sarkeesian.
She fairly regularly retweets some variation of "only x% of rape allegations lead to prosecution", where x is some small number between 4 and 8, with the assumption that every allegation must be true, or various other statistical manipulations that are used to pillory
all men for the actions of a violent minority. She certainly believes the various claims that a huge mass of rape is unreported or ignored and that there is no such thing as a false rape accusation. In that sense she's just the same as the Sarkeesians of the world, she just happens to align with common sense on the troon issue.
The people sperging about it in the thread seem to labour under the impression that her being right about one issue means that she needs to be "right" about everything, or she's a Bad Person. Her opposition to troonery is no doubt strengthened by her incorrect beliefs about all men being potential rapists, but her position that troons are almost universally sexual deviants and potential rapists is still correct, because reality bears it out. The total combination makes the reactions to her interesting to watch; the troons and their handmaidens can't actually argue with her in their usual terms, because outside of her position on troonery, she believes many of the same things they do. She's "one of them", so to speak. The result is that they melt down and try to paint her as a literal nazi and everything else, but it doesn't stick and peaks people every time they see it, because they see that she's just a squishy liberal feminist who is being bizarrely abused by a group who would otherwise agree with everything she says.
On the other side, the "le based and red pilled" sorts, who agree with her position on the troon question, go quite bananas when they realise that she is in fact just another one of those
awful femoids who professes the broad range of feminist theory. The dividing line between the troons and the red pillers on the issue of how they perceive women is much narrower than one might think, which is probably why the alt-right-to-troon pipeline is so prevalent.
What the fuck are you even going on about?
Patriarchy theory and the broader scope of critical theory has been deeply engrained just about every aspect of humanities education in the western world since the 1970s. The core tenets of the "theory" are that males are driven purely by the desire to rape and dehumanise females, and that everything a male does, every action he takes, institution he creates, or structure he builds, is a form of worship of the phallus and the imposition of patriarchal control over the female body. I'm paraphrasing somewhat, but this general idea is quite openly and uncritically professed in academic circles and forms the basis of most modern educational theories. Its the reason why men aren't allowed their own single-sex spaces and why a certain breed of feminist, educated in these theories essentially since childhood, insists that all men are rapists and that - in the most extreme cases - men should be castrated and murdered and reduced down to a docile studding population, while women rule the world.
One thing I have noticed is that extreme sex-supremacists always seem to break everything down to their bizarre sexual fantasies about controlling the other sex.
These are the women who hate their sons for having a symbol of patriarchal dominance between their legs. They are often the sort who troon out their "disappointing" male in order to have a daughter, but they will certainly abuse them for most of their miserable lives.
e: just to add, none of this is to accept the premise that Rowling made all this happen. I was focusing on the educational aspect, which is a valid issue to complain about. The idea that Rowling is somehow responsible for things that were set in train before she was even born is a bit silly, to say the least.