What is everyone’s opinions on them as an idea
I am also referring to organizations that support them(in contrast to the fire and brimstone pastors) like that church Julien Baker(a gay singer who found out she liked girls as a teen) goes to in Nashville.
I think they exist as more than an idea 
Can confirm. I'm fer them/us.
I'm strongly supportive of affirming and self affirming LGBTQ Christians. Those who are non affirming but use identifying as LGBTQ as a means to access LGBTQ spaces to flag wave but promote 'traditional sexual ethics' (heteronormativity) I pity but are damaging to the community.
I know quite a few wonderful, and, yes, well-adjusted LGBT Christians who don't pursue relationships and sex for one reason or another (my personal favorite is a close friend of mine who describes herself as "Side C for Celibate-but-not-for-moral-reasons"), but, yes, people who actively push for that within the LGBT community do come across as fifth columnists more often than not.
Catholicism is gay as f-ck.
Yep. "Simultaneously gay and homophobic" is the peak Catholic mood, just as it is, in many ways, the peak mood for Western cultural and artistic traditions as a whole.
