He had to cave on some issues important to his base.
I'll say this though... in the long run you all will see that despite Trump's many many many flaws, he is actually the best thing for the LGBTQ community because he effectively destroyed the left/right split on gay rights. He is clearly the most gay friendly leading Republican ever. He has delegitimized being anti-gay as a political thing. Now the question is how far the needle goes on this issue, not whether it's ok to be pro or anti gay. Basically when he runs for re-election in 2020 (if he does) the choice will be between a Republican that's moderately pro gay rights or a Democrat that is firmly pro gay rights. There is no turning back on this issue.
I do not agree with revoking protections for transgender students, but if this is the worst thing he does on this issue (and I suspect it will be for the foreseeable future) then this is not a stinging blow to the cause.
Appointing Gorsuch will be by far the worst thing he does on 'this issue' in the long run.
You do realize that approving Gorsuch just puts the court back to the same 5-4 pro-gay majority it was at from 2011-2016, right? I get the concern about letting Trump replace Kennedy or Ginsburg, but letting him replace Scalia is honestly fairly harmless for liberals. They don't "gain" anything, but they don't really "lose" anything either.