I sent this letter to the LATimes in Nov. 2003 (not published)
Bush says he wants to "defend the sanctity of marriage." By definition, sanctity is a topic for churches. No court, no law, no constitutional amendment can force a church to sanctify a marriage if it doesn't want to. The sanctity of marriage does not need defense and cannot be affected by governments.
Besides, I'm still waiting for someone to explain how a gay marriage could possibly harm anyone else's marriage!