Superficially it's a problem if homosexuality is genetic - if the difference between people's sexual preferences is genetic - because at least a pure homosexual would be unlikely to reproduce and therefore pass on the genes. So the first question you ask is, is it actually genetic, and the answer is probably to some extent yes.
Richard DawkinsPeople who criticize The Selfish Gene like that often haven't read it. The selfish gene accounts for altruism toward kin and individuals who might be in a position to reciprocate your altruism.
Richard DawkinsThe thing that defines a species is that all members have the same addressing system for their DNA.
Richard DawkinsWe cannot prove that there is no God, but we can safely conclude the He is very, very improbable indeed.
Richard DawkinsIf I were God wanting to make a human being, I would do it by a more direct way rather than by evolution. Why deliberately set it up in the one way which makes it look as though you don't exist?
Richard Dawkins