I'd respond to the question before having the idiot thrown out. "What a man and a woman do in the course of their marriage is up to them. If a woman is content to marry a man to whom her anus is the most -- indeed only -- attractive part, then she is presumably content with the arrangement. And if a man is so pathetic that that's the only value he derives from his spouse, then he probably is too. Now why don't you run along back to Bangladesh and see if your goat will take you back."
I prefer: "It's a very good thing. Best way to produce more progressives..."