Doesn't matter. They can't "reproduce", yet they continue to come into existance. You were hinting at a genetic dead end for homosexuals -- therefore since they keep appearing, you imply it can't be genetic. But clearly individuals who can't reproduce even if they wanted to keep being born all the time. Either it too must be a choice for them, or it is possible to be born with some characteristic the prevents reproducing -- without those genes or characteristics giving rise to the tendency from dead-ending in the gene pool.
In short, your attempt to smuggle the "it's a choice" argument through misapplied genetic theory is shown to be false.
Please answer my question now, which you have ducked several times:
How old was the adult male who "helped" you to "discover" your "true sexual identity" when you were a boy?