"Almost without exception, the girls are either lesbian, autistic or have a history of sexual abuse (or some combination)." I'd agree with the lesbian bit, as regards what happened in the past. So, personally in the lesbian community, I've known a few women who have transitioned, and also some women who nearly transitioned. In the wider community, we have people like Pat Califia and the former lesbian writer Red Jordan Arobateau. These are people who were known in the wider gay and lesbian community, but (unlike people like Chaz Bono) not so well known outside that.
As regards women who wanted to transition to become gay men -- I've only known one such person. Someone who used to hang out with the gay men, but frankly, they weren't that interested. The rest of us, I guess used to think it was just very sad, because however much they wanted to be male and wanted to be a gay man with other gay men, it wasn't going to happen (possibly except with someone like themselves). This seems to be more of a thing now, at least on the internet..........
The current pattern and trends amongst youth are very different, as seemingly are the attitudes towards butch lesbians and camp gay men (not bad, just boring?). It is a very rapid, recent, and enormous change. Hmmm, I wonder why that might be????