So, it wasn't that people just decided to divorce gender nonconformity with homosexuality, it was that for a time, there was a lot of effort put into being against stereotypes all together. When I was growing up, it was, your daughter's a tomboy now but this doesn't necessarily mean she will grow up to be a lesbian. And this was also being done at a time where people were being told girls can do anything boys can, all children should be able to play with any toy they want, etc etc. This has kind of reversed itself in recent times and I do believe that trans people are ultimately responsible for this.

What I think is happening is that because trans women are saying what they think makes them women are getting a lot of media attention, this has made its way back down to the rest of society and because their views of what women are are so warped, everyone else's views of women get warped too. You see transwomen saying how they knew they were women because they loved high heels, or being submissive or they loved make up or hated sports, so now what happens if you're a young woman who hates that stuff or loves sports? Easy. You're just not a woman any more! In a sense, TRAs have expanded what gender non conformity is, because it doesn't fit their own vision of what a women is.

As for butches and feminine guys, I believe they are transitioning because the trans movement is essentially telling you "you are too masculine to be a women so you might as well be a man" or "you are too feminine to be a man so you might as well be a woman". Less to do with the correlation of being gender non conforming with being gay and more to do with the trans rights movement having extremely rigid gender roles. The erasure of gay people is a bonus.