As a selling point, it's difficult to drive home judicial activism to your typical "non-FreeRepublic" type. An amendment is pretty clearcut. I just think there are many out there who would see this as purely political and not worth an amendment.
But I don't claim to be an expert...makes for interesting debate though.
What concerns me most is the outrage over this but resignation over the pending prescription drug benefit. If huge subsidies of that sort aren't damaging to the idea of personal responsibility, I don't know what is. My real agenda here is to convince folks to exert more agenda on that stuff, and less on issues like this...
While your cause may be more just in the long run, the issue of (not) accepting homosexual marriage will resonate among the populace. This Ammendment would pass. And the politician with the balls to get behind it will be (or remain) President.