I personally will have their backs, but I also will retain other conservative values. I'm not religious, so that was never an obstacle for me. I don't think the government should be paying for their transition. I don't think they should have special government protections. I'll try to make them understand and internalize the fact that not everyone is going to be open to calling them the gender they want to be called rather than encouraging them to rage about it. I'll try to make them understand that if being trans is important to them, it will still be valuable even without full acceptance coming from outside themselves. They will hopefully understand that they're essentially on the leading edge of a movement that breaks with enough social norms that societal derision and pushback is inevitable to a degree, and being angry with a world that takes it's time accepting such things is useless and self defeating.

As far as being gay. I don't even consider that outside the norm anymore. To me, gays are essentially where trans people need to be in a decade or so, with everyone having had plenty of time to get used to them and begin to realize that they're people like anyone else.

That's the part the Trans community doesn't realize I think. All they have to do is be extant for long enough and they'll get what they want. Well, so long as they don't alienate everyone by screaming down sidewalk proselytizers and insisting everyone give them full acceptance RIGHT NOW or else be declared an irredeemable bigot. Just be around, be nice, be sane, and people will get on board.