In this excerpt the author does a good job pointing out that personal revulsion to an idea may make for great rhetoric but is still a lousy argument against same sex marriage. Or against your parents having sex.
To describe homosexuality as ‘unnatural’ – particularly from our culture which is almost defined by our deliberate disconnection from nature seems like the ultimate odd argument; driving a car is unnatural, eating food from a box is unnatural, even living in a house is unnatural – but how is a committed personal relationship with another human being ‘unnatural’?
And many things might strike us as ‘disgusting’ or disturbing if we think about them. … [C]an you recall your first recognition of your own conception?
I’m guessing that the thought of the process that brought each one of us into existence was not, at first, terribly appealing or comforting.
via Are there Any Solid Arguments Against Same-Sex Marriage? – Red Letter Christians.