It is both amusing and tragic that people who support "the biblical view of marriage" can't seem to bring themselves to support the biblical view of how to treat their neighbor.
Many (especially) Protestant religious denominations during the Civil War were very supportive of slavery, insisting that it was the natural order of man as well as the will of God. After all, passage after passage in the bible promotes slavery, even to the point of explaining how to obtain slaves, how hard you may beat them, and when it is okay to rape them. All god-fearing people owned slaves, of course, or wished they did.
After the war, somehow, these same denominations decided that God now wanted them to ignore those parts of the bible that were no longer politically correct. Indeed, God led them to the realization that they had actually been opposed to slavery since long before the war; they just hadn't realized how supportive they had been of their Negro brothers when they were beating and raping them.
Gay rights will follow the same trajectory. When anti-gay bigotry becomes politically unacceptable, men like Dan Cathy will decide not only that supporting gay rights was God's will, but that they had actually been enormously supportive of us all along, without quite realizing it. They will appreciate that their gay bashing wasn't really gay bashing all along - they had been gay rights leaders without realizing it!
Then, the Dan Cathys of the world will regale us with tales of how wonderful they had been to us, back in the days when everyone else was spewing hatred and intolerance. Such is the glory of God, that He leads the faithful to righteousness in retrospect, even when they thought they had been bashing our heads in with baseball bats.
But, until that time comes, you won't find me eating their holy chicken.
