Will letting them be married have any effect on your marriage? If you answer "yes," then please explain.
Is the marriage of two "cornholing fairies," as Blackie calls them, any more of an abomination in the eyes of your God than a bride in a white dress, the Christian symbol of purity, walking down the aisle to be married in church, knowing full well that she's slept with all of the groomsmen and half the men in the church? Not to mention half the men in The Home on any given Saturday night. If you can honestly answer "yes," please explain.
If you're going to talk like Fred Phelps when it comes to homosexuals, at least be as consistent as he is and condemn the inherent hypocrisy in most of the rest of the religious world.