If there is such a thing as a “gay gene”, then it must be a genetic defect. It seems to me that any genetic condition that would prevent procreation would have to be a defect.
I could see “gay rights” being justified under the A.D.A., however offensive many may consider that notion.
Next question, if it is a genetic defect, would a “cure” be justified?
There are a couple of things driving the tendency to choose that lifestyle...
Childhood sex abuse is a huge factor. But any study linking the two would never see the light of day.
Another is the male sex drive and sin nature of not desiring to control it.