I’ll throw out the “Extinction” argument mainly to stimulate some thought on the absurdity of the argument. Just look at the incredible array of human differences and think about why nearly all of them are the result of intentional choices. Sure a composer or musician may have been born with some innate musical talent, but had they gone out and played baseball instead of practicing the piano, would their talent have been developed to the same degree? Yet very few musicians claim they were born that way, it was a conscious choice and they worked at it.
Another point - if homosexuality were an inherited trait, it would necessarily follow the laws of genetics. Yet we never see family trees or other proof of inheritance.
Nature vs nurture? The latter.
My workplace is increasingly “diverse and tolerant”, publishing coming out stories of several men as well as LGBTA propaganda.
In several cases, men reported that they came out after having a wife and children. Then they decided that they were gay and started living that life.
It clearly was a choice - otherwise, none of these men would have been able to marry and make children. One guy, 4 in ten years, another 5.