Musk: more politically oriented than just money now, had aligned himself with a very large part of the population that thinks at a minimum that even if some people need to transition for their own health, society retains the right to consider their pre-transition history to still be part of reality

Zuckerberg: profit driven, is aligning Facebook etc with the political reality in America and the real prospect of being fined or embargoed by a Trump administration, would flip back if a democrat won in 2028

Rowling: belongs to a British generation of certain age where trans people are superficially accepted BUT regards their pre-trans history to be something still relevant. That's where this started and it escalated / deteriorated from there E.g. compassionate to a degree and willing to entertain the "fiction" that a biological man is now a women for the sake of that person's mental health: see them at the shops presenting female? carry on as normal.. talk to them? use their current name and pronouns out of politeness.. BUT.. if they want to access a female shelter, draw a line.. if they want to teach young children, risk assess them including their pre-trans gender and history etc. Rowling then got into increasingly fractious arguments on Twitter, largely arising from other people she followed and liked and what the trans community inferred from that. At that point she doubled down declaring advocates on Twitter to be increasingly hysterical and deluded whilst simultaneously insisting she would treat trans people humanely in person. She's then lashed out in numerous ways including in her writings aligning herself with increasingly extreme anti-trans people. FWIW, I think she would have carried on being a mildly tolerant (if dated) person of a certain age had she just stayed off Twitter entirely. But lashing out, being misinterpreted and misinterpreting others had led her to spiral down into viciousness and bitterness.