As has been hit on in this thread..... It's the imposition of "YOU MUST EXCEPT ME" being shoved upon people where the issue arises.
My late father used to say..."I don't walk in to a room and say, Hi I'm Mr. Speed I'm a heterosexual"
The fact that they choose to define themselves by their sexual preference or gender confusion is much more the problem then their chosen gender or choice of partner.
Also the fact that your character will be assassinated as you are NOT allowed to have a contrarian opinion. You MUST accept them or you will be destroyed.
I think many people really don't care. They begin caring when someone else's choices are imposed on them.
Oddly enough, My 2 sons are in their late teens. They had friends over the other night and a subject similar to this came up. We were actually discussing the outright assault on the first amendment and how no one is safe from it. Used to be comedy was the last bastion of free speech but even that is changing and the cancel culture is attacking comedians that joke about things they find offensive. I told them that I flat out feel terrible for them because the world they are growing into absolutely sucks.