From a frum perspective, the gay person if they are from the Orthodox community, should make efforts to change the behavior, (or attraction?) but what should they do if they cannot win that battle?
If they are forced into hetero marriages the likelihood is that they will find a side person. Of course, they are probably very in the closet so it won’t come up. I can see them being pressured in shidduchim and having a problem. I am assuming that most of these folks are in the closet. So in a way, it would be better to let them be out of the closet thereby not forcing them in the normative Shidduchim parsha.
I have heard of a couple of such folks who do not engage in actual act of prohibited but simply prefer their company.
I don’t say I have proof that this is so but from what I read they are genuine Ye’ras Shomayim oriented.
Would there in fact be an Avairah, if they lived withhout that particular act?