Buddy, your demands are pretty tiresome. You seem at least somewhat literate. Go to Google yourself and type in "biological basis homosexuality" and lo! Many, many articles describing what I have asserted! This is on top of my decade-old genetics studies, which (even back then) made it quite clear that there is a biological basis for homosexuality.
VR
Homosexuals have no biological defects to blame. Environmental factors form this sad group. It is a choice, it is a sad choice but not a permanent bad decision. Many have escaped its clutches.