There was never one singular push for gay marriage over all other things. If anything the aids crisis was the most unifying phenomenon in the lgbtq community, because it perfectly encapsulated that society at large can and will unequivocally kill lgbtq people via the intentional withholding of basic consideration for life. And even that had multiple fractures in the community of what to do about it (such as whether or not to protest in churches).

Lgbtq people are not some isolated commune where their problems don’t affect the rest of society, and treating them that way is precisely society at large killing lgbtq people by simply considering that their deaths aren’t worth preventing (this was the attitude during the aids crisis).

The existence of trans people is not an "issue", or a question to be decided. The fact of that existence is certainly very inconvenient to a great many people who are used to ignoring it.