My thought exactly. Argumentum ad absurdum (I don't mean it to be offensive) - abolition of slavery, too, "removed an already-existing right of certain persons"

My thought exactly. Argumentum ad absurdum (I don't mean it to be offensive) - abolition of slavery, too, "removed an already-existing right of certain persons". As I said, I'm not comparing gay marriage to slavery here, but the idea that granting certain rights should be "forward-only" is bizarre to say the least.