I've written a little about that. In short, I think there's a transhumanist connection, although there's also currently a fad going on that's related to "wokeness" (left-wing political correctness).

https://medium.com/grim-tidings/the-transgendered-are-pioneers-of-transhumanism-9a689e2af734?sk=c4f7a4d8287c970a9e5107c8c0937862