My thoughts are that homosexual behavior is a manifestation of emotional issues and any child raised in a household with two emotionally disturbed adults is much more likely to have emotional issues of their own. Crazy people beget and nurture more crazy people, this does not require a PhD to figure out.
It will, these are nightmares spawning.
The good news is that there never ceased to be a God and His offer has remained the same as long as there is a possibility of taking Him up on it.
Some of these unfortunates will end up, maybe after a wild pinball ride, but still end up, with the Lord. And they will have learned battle through quite an experience with the devil.