It's fairly obvious to unclouded faculties that homosexuals are acing themselves out in the Darwinian struggle for survival, since they are not in the deep end of the pool of those mostly likely to pass on their chromosomes. That doesn't mean that homosexual orientation might not have "natural" causes, just as other disorders do. Nor does it mean that some sort of Just So story can't be concocted to overlook that glaring fact ("Same-sex attracted individuals could have made excellent, er, nannies in pre-history, thus guaranteeing a higher species survival rate, blah blah, etc."). Nevertheless, a fact it remains: As a Darwinian advantage, homosexuality is highly unconvincing.
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