They're the ones actually disloyal to you, as they actually could choose not being assholes.
Do your best to find new close people to you if it can't be solved.
Why don't churches perform exorcisms on people who are just mean sons of bitches? Jesus literally had nothing to say about anybody's gender or sexual orientation. He had a lot to say about the cruelty some people dump on their sibs and neighbors, though. He wasn't a fan.
I totally agree that chosen family are as precious as people you happen to share genetics with. More so, a lot of the time.
Knowing you're "on the right side of history" (as some U.S. politicians like to say) is pretty useless if you're running the risk of being murdered every day, though. Not all of us can just sever ties to our toxic relatives or pack up and leave the hateful regions where we were born, either. There can be lots of reasons, from being too disabled to live alone, to being unable to find work someplace better, to not being accorded enough civil rights to make any meaningful choices for yourself at all.
So yeah, I see you, suicidal LGBTQ+ folks.
For the record, I am both gay and trans, which doesn't bother me. It doesn't bother any close family members or most of the immediate community where I live. (I am in the U.S. though, which should be all I need to say about that.)
I'm chronically suicidal for the usual sorts of reasons: genetic vulnerability plus being raised in a family that has a ton of mood disorders and substance abuse problems, for the most part. I can't say it helps to always have to worry about whether I'm going to get my teeth punched out for the terrible crime of using a public restroom. It doesn't. But honestly, being LGBTQ+ is among my lesser problems.
It's worth mentioning because people should be aware that depression and suicidality are not an innate part of being LGBTQ+. I have relatives who are confused on that point, even though they have the same genetics and family environment that I do, the same mental health problems that I do, and
they're cisgender and heterosexual. But clearly, my "real" issue is that I'm queer.