It's extra funny because I don't recall anyone asking this person to speak either. They're doing the same thing Rowling is, posting their opinion on Twitter, but when Rowling does it it's supposed to be some arrogant notion that people care what she has to say. She's not allowed to just post like everyone else.
The reality is, nobody has to see what JK Rowling tweets. I don't ever see what she tweets except when the troons let me know about it. The "control" tweet is funny for this too, their ability to ignore her is completely within their own power, but they refuse to. They often lament when she's not posting anything for them to get angry about. That Wizarding World account wasn't even angry enough about this, they were digging up and retweeting things from years ago they were so mad.
I also like the ones where they surmise that Rowling figured her fans would just adopt her views and now is angry about it. Yes, this is the normal assumption by anyone with millions of fans, that they all lockstep support whatever she says. Or she could be normal and not assume that any fan agrees with her on anything except Harry Potter. And probably not even there as fans are notorious for nitpicking. Something we see now as all these fans proclaim they never liked it and it was always garbage because of this or that even as they can't stop talking about it.
It was these same people who made a Rowling Cult and then felt BETRAYED when she stepped out of line from what they all decided were Her Tenets, so they kept the cult and just shifted her as the uniting object from love to hate.