Many conservatives hate troons because they associate them with gays.
The association isn't without reason. Gay marriage is a rebellion against nature and common sense, just as transgenderism is, just more subtle. Gays resent the inherent differences between male and female just as much as genderspecials do.
However, even at its most cynical, gays are not trying to jettison the troon/queer movement in order to appeal to conservatives, but to NORMIES. Yes, it's pragmatism, just like how the LGB movement had to disavow the pedophile movement in the 90s (despite being pretty loud about wanting to abolish age of consent laws before then). They can easily see that the most schitzophrenic predictions made on where the legalization of gay marriage would lead are coming to pass, most of it thanks to the troons and the genderspecials.
And they want to stop it, otherwise normies, the same normies who supported gay marriage out of misplaced empathy, will realize that the conservatives, even the christian fundies, had a point about gay marriage, and will recant their support and stop enabling fags.
Gays aren't trying to appeal to conservatives who were always leery of gays. They're trying to avoid losing the normies, the same normies that allowed them to obtain gay marriage in the first place. Especially since that goodwill was rather poorly earned in the first place,
utilizing heavy amounts of proto cancel culture.