"Marriage is defined as being between a man and a woman, and marriage hasn't changed since history began."
So I found this treatise on biblically correct marriage.
Hosted by the Society of Christians for the Restoration of Old Testament Morality. It's lovely, really.
Some other things that I heard were that the gays are asking for special rights for their minority. When pressed, the caller was asked about whether he thought that blacks were offered special rights during the civil rights movement. He said "well that's different. They didn't choose to be black!".
I don't think that the problem will be easily solved, since I don't think there is an agreement on what marriage is. There are two competing views: the moral view and the legal view. I have no problem with marriage being defined as a husband-and-wife union between a man and a woman in the moral sense, as long as there is a legal definition of a civil union that allows for equal rights in things like partnership. Life benefits and insurance and so on would be determined by the civil union, rather than the marriage.
Of course, it's unlikely that there will be a separation of the two, since they are so intertwined-- but with a constitutional amendment defining marriage, do we have the option of declaring it unconstitutional based on the separation of church and state?