Why is something that obviously should well be evolutionarily wiped out (if it is indeed due to genes/people can't help it) not, by now?
(Corollary question if you say "there is no evolution, it's intelligent design" - ok then what the heck purpose would homosexuality serve in this design? Honest question, I'm not being a smartass.)
Edit - PS you know you're over some kind of target if an OP gets downpoots.
Just my observation, but the topic is greatly explained through basic Cause/Effect. There's three main causes for queers:
Desire/lust/sin: These folks are simply giving in to temptation. It may be what they claim to be attracted to but it is giving in to weakness against God and natural biologic reproduction (both of which we are all wired for)
Psychosexual trauma: These folks are damaged deeply from a litany of examples of but not limited to: child abuse, sexual abuse, physical abuse, etc
Cultural/Societal suggestion: These folks are manipulated by cultural engineering and societal norm suggestions a la decades old propaganda on several fronts.
I think there might be something to the parasite thing as well.
Lust makes it easy, makes it viral, because it's a natural imperative for all; it can only be offset by the spread of morality. Trauma happens, and begets trauma; this also spreads the deviancy and is offset by breaking and treating chains of abuse. And yes, it is also pushed by those with an agenda to destroy family, sanity, and nature - thereby better enslaving humanity. In general, a society with too few real struggles and too many societal ills will make people restless and lack the inspiration for people to bond and mate heterosexually. There is little reason to want to bring kids into such a messed up world, and if you're not doing that, or fighting for a just and substantive cause, you're just screwing around. It's not long before hedonism might as well cross gender boundaries. Homosexuality is a mutation of the human psyche caused by unnatural, immoral contamination of their human environment. It is soul cancer. It starts in the soul's eyes, spreads to the soul's libido, and in Stage IV, metastasizes into the souls of nearby children.
Second example for sure. Some people tried to defend Rosenbaum for that reason, cause he had been abused also.