Yeah I am biased. And so are you, that's why we are here jackass!<quoted text>
I'm refering to a SSM you moron, not just a marriage. The few "VALID" arguments as you describe, are just that valid, just because YOU don't agree with them makes you very biased.
All arguments I've heard against same sex marriage are weak at best. The slippery slope I'd say is the strongest. If we allow marriage to mean everything, it will mean nothing. But in practise it will hardly be a problem due to the small percentages of people involved.