But people like this have existed for a long, long time, so even if there's a big uptick in this gender tehory bullshit, so it's not JUST that.

Any evidence for that?

I personally was a gender non conforming child who told everyone I wanted to be a boy when I grew up and was terrified of becoming a woman with all that entails. I got cured at puberty like 93% of gnc kids. Now looking back I was nothing like a boy, I had no boy's brain, I just didn't fit in with girls so I thought I had to put myself in the other box.

I have actual experience of this thinking and know what it's like from the inside, I don't have to trust what other people are saying.

However if you look at people's actions rather than just their words it's quite clear that trans women still act like men and trans men still act like women even though they claim to have the brain of the opposite sex. Gender clinics even have to have classes to teach people how to act, speak and walk like their preferred gender. That wouldn't be necessary if they were born with a female or male brain, you would do those things instinctively.