Biologically... reproduction is a fundamental part of our existence. Human beings haven't always viewed sex as a pleasureful experience, they did it out of instinct. I never said if gay marriage is allowed, everyone will go gay. I simply said that if there was an isolated population of homosexuals... they were go extinct after a generation. Explain to me why that is. If homosexual is this healthy lifestyle, explain to me the benefits of homosexuality. I don't find an increase of getting STDs to be appealing, nor do I find the impossibility of having children to be either.