You can actually show that pedophilia results in lasting damage to the victims and should be outlawed on that basis. Gay marriage is between two consenting adults--no crime. Huge difference. And, again, you know it.
A tip: when you go to the effort to construct a straw man, you shoud at least make sure that it can stand up to the slightest breeze.
john, I am not convinced at all that this is unnecessary. MA judges have taken it on themselves to define marriage. I think we need to fight back. I think Hatch is right when he says this issue is not going away. Maybe the amendment won't pass, but the debate is serious and it matters, IMHO.