Richard Berquist is an emeritus professor of philosophy, University of St. Thomas, and writes in the StarTribune:
"...The paradoxical result of all this is that while there is no discrimination in refusing to recognize the homosexual relationship as marriage -- since it is essentially different from the heterosexual relationship -- there would be discrimination in granting the privileges of marriage to homosexual couples while denying them to other personal friendships.
Imagine two dear friends of the same sex, or a brother and sister who live together. Although their relationships would not involve sex, they might find it advantageous to enjoy the legal and economic privileges of marriage. Why would their claim for these benefits be any less reasonable than the claims of homosexual couples?
So if we wish to subsidize homosexual friendships, we must, to avoid discrimination, subsidize all loving personal friendships. If that is absurd, so is gay marriage."