"I wish they'd say, 'Fuck you! We don't need your stupid marriage!' You need to listen to me: Nobody wants to go to your wedding. Nobody does. People will give you double gifts if you elope, I guarantee it! Your wedding is not going to be fun. It's just going to be another wedding, and nobody wants to go."
ADDED: I remember, back when the gay marriage issue first emerged, a former student of mine — a gay man — confessed to indecision over the issue. Antagonism to the conventional institution of marriage might be the better alternative. I compared it to a golf club that discriminates against women. I don't need to want to play golf to oppose the discrimination. The message of exclusion hurts even those who, given the choice, would not enter.