Damn Insane Sith beat me to it...Yes, The ancient greeks are one of the major civilization who accepted homosexuality. If you think the ancient greeks are not a major western civilization you got a problem...
It's obvious people condemn the "act". Why should you care about the "act"?
Is there anything to care about?
I'm a leftist and I want a wife and some kids, a normal family, yet I support homosexual marriage.
As was said before, for pete's sakes separate religion from this! They never asked any religion to accept same-sex marriage! Most arguments against this are religious. Yet we live in democratic countries, not religious republics. We've learned to separate state bussiness and religion adn I suggest we keep it this way. We don't want a new Iran.