[Rebel_Ace]

Premise is demonstrably false. Instead of thinking about a “homosexual” genetic defect, apply the same logic to other “genetic defects”.

Ask yourself this: “Are there any genetic defects which typically prevent reproduction because they are fatal?”

The answer is “Yes,” and many can be named.

So why are these genes still persistant?

[Steve_Seattle]

"Ask yourself this: “Are there any genetic defects which typically prevent reproduction because they are fatal?”

But aren't most of those defects extremely rare? Some people claim homosexuals constitute up to 10% of the population.

[WTFOVR]

How is then that, in every instance of research done to date, the correlation of same-sex attraction among identical twins never exceeds 11 percent?

If homosexuality were a genetic trait, then both individuals in a set of identical twins would possess the inclination to the same degree and without exception - since they share the same DNA. Yet that is hardly the case, even in the most biased research.