Opposition to gay marriage is perplexing to me. I've been given a few major fronts, but I don't really any to be too legitimate.
For those basing their arguments on religion and the fact that each person is a 'vessel for God,' that's fine. However, God is not in the constitution. Remember why we founded this country? Your religious persecution has no place in the governance of the country. What happened to loving thy neighbor? I met one person who just didn't want them titled "marriages." Whatever, call them civil unions. All these people want is equal rights and the due benefits for committing to another person.
Also, your faith doesn't have to sanction the act of marrying gay people, but some faiths may find it within their edicts. Allow them to do so. You can keep on hatin' until you catch up to those of us in the 21st century.
Think gay marriage will ruin family values? Think again. Show me evidence that children are actually damaged from that kind of environment. I would bet results would prove the opposite. I imagine that this kind of upraising would emphasize values like caring for others, accepting alternative ideas, different mindsets, etc..
Are you defending the institution of marriage? Cripes, you got worse problems than two dudes trying to show devotion towards another. Isn't that actually helping the face of marriage? Two people devoting to one another? They might even stick it out. Take a look at the divorce rates and tell me marriage is the platinum plated gold you make it out to be.
I also heard an interesting argument linking a falling economy and gay marriage. I don't think I'll do justice to that argument. Besides, I gotta get outta this lab and find me some chrome-plated babies.