Growing up I had a cousin who was 4 years younger than me who had an exceptionally good childhood with a brother and the sweetest of parents who came out when he was 15.
I also have a granddaughter who is gay..
What makes someone gay?
I haven't a clue, research has shown me that there have been both gay men and women for as long as is known.
My best guess is, is that it is something genetic, but what specifically I don't know.
But to say that it is abusive parenting is blatantly not true and vile propaganda, to suggest that leaves you wide open to being victimised yourself as a homophone it's a delicate subject and needs treating with more kindness and understanding.
Something which is greatly lacking here.

Some have been abused which turned them to that opt.
I've heard that a gal fren who had times w/ many guys later choose females.
Since this has been going on since ? who knows,
it goes w/ all the other twist and tweaks done to the human race thru eons.

These come to mind as a result of the separation/alienation from GOD.

"... even their women did change the natural use into that which is against nature:”
"And likewise also the males, having left the natural use of the female, were inflamed in their desire toward one another, males with males, working out shame and receiving in themselves the recompense which was fitting of their error."

btw GOD hates Pride more than these other consequences.