"In an essay 10 years ago, I pointed out that it is utterly logical for polygamy rights to follow gay rights. After all, if traditional marriage is defined as the union of (1) two people of (2) opposite gender, and if, as advocates of gay marriage insist, the gender requirement is nothing but prejudice, exclusion and an arbitrary denial of one's autonomous choices in love, then the first requirement - the number restriction (two and only two) - is a similarly arbitrary, discriminatory and indefensible denial of individual choice."