This comment in no way reflects my position on gay marriage which I am generally for if only because I think denying it causes more pain than accepting it.  Proponents of gay marriage however, are going to have to take some interesting legal positions to show that marriage is important to them as a "buddy system" and not just a vehicle to publicly sanction their form of sexual congress .

But gay rights organizations have long refuted claims that acceptance of same-sex unions is a slippery slope toward marital anarchy.

“The right wing would love nothing more than for us to spend all of our airtime discussing distractions such as polygamy, bestiality and other — from their point of view — doomsday scenarios rather than engage the public about committed same-sex couples being discriminated against,” says Evan Wolfson, executive director of Freedom to Marry, which advocates marriage rights for gay and lesbian couples. - The Washington Blade 2/24/06

Polygamists, Unite!  They used to live quietly, but now they're making noise. - Newsweek 3/13/06

Most notably, Sen. Rick Santorum of Pennsylvania told the Associated Press in 2003 that legalizing gay sex would pave the way for legalized bigamy, polygamy and incest. This "slippery slope" argument angers some gay-rights activists who see the issues as being completely separate. "I frankly would not love to see an article [about polygamy advocacy] in NEWSWEEK because this is the connection that our opponents make, and we feel it's a specious one," says Carisa Cunningham, director of public affairs for Gay and Lesbian Advocates and Defenders.

Someone at Newsweek must really hate Carisa Cunningham.