The governments recognition of marriage is an intrusion into our liberty. Marriage alone whether or not to allow gays in on this privilege would still be preferential to non-married couples.
Your next argument going to be that health care is a right to all?
The fact is there was never meant to be a social bill of rights because that would require legislative morality. And you sure as hell don't want my christian values imposed onto you.
Our founders did not set up a democracy, they set up a constitutional republic. They in no circumstance wanted certain rights abridged, but Hamilton feared that if rights were named in a "Bill of Rights" then others liberties would be subject to mob rule. He was right. You support mob rule, I do not.
I am against a system that abridges liberty. Class warfare like welfare, subsidies, entitlements, redistributive programs and tax shifts do exactly this. Form lobbyists for a mob ruled system where legislators can provide preferential treatment to certain groups and entities. I do not have a social obligation to anyone.
I would not vote for discrimination.