The case for gay marriage requires thinking that gender doesn’t matter very much. Male-male and female-female sexual relationships are only equal to male-female sexual relationships if you think males and females are mostly interchangeable.

You do not and will not have homosexual relationships without homosexual desire. Yet homosexual desire says that males and females are not mostly interchangeable.

QED and vive la difference.

I’m only embarrassed that it took me 6 years to come up with this simple and obvious contradiction in the case for gay marriage.