What do you think of gay marriages?

I personally support it completely cuz I'm bi, and I've always thought that gays are humans just like straight people and if straight people can marry, so can them. And I think America as a nation should get with the times. We always say that we're more civilized then most countries and "Land of the Free" and all that, so why dont we legalize it???? What do you guys think, and I know this isnt in the LGBT section