When bigotry-based lawmaking was all the rage during the earlier part of last century, race mixing, at least for marital purposes, was seen as being so immoral that 31 of 48 states criminalized it to protect, you got it, the sanctity of marriage.
Now, these were all states that had already legalized divorce, which Jesus himself had proclaimed during his Sermon on the Mount to be the greatest threat to the sanctity of marriage and a sin greater than coveting thy neighbor's wife. If the sacred institution of marriage, and I do mean sacred, can withstand legalized divorce despite Christ's clear instructions to the contrary, and it can withstand the immoral affronts of mixed-race couples, I'll guarantee all who read this that marriage can withstand, heaven forbid, the legalization of gay marriage.
I'd like to suggest a new google bomb, perhaps difficult, but necessary - Bigot = George W. Bush.