As I said in the other thread, there's pretty much no sane argument against same-sex marriage. All it boils down to is "OH NOES TEH GAYS."
Couldn't you do that for any issue, really, if you wanted to be dismissive?
You could, but gay marriage is rather remarkable for the paucity of secular arguments against it that are liable to be held up as legally or sociologically convincing.
I wouldn't have any interest in this issue -- it's not life or death, it's almost entirely irrelevant to me personally -- except you're 100% right: There is no public policy argument against it that I don't find maddeningly bad. I distinguish "public policy argument" here from "secular argument" because the religious public policy arguments are bad too. Do people really want to have the government be picking which denomination's scriptural interpretations to endorse? If I were a religious person, that seems like a terrifying prospect. Tons of Americans belong to religious faiths that do not recognize their friends' marriages as religiously valid. Do they want to bring those disagreements into civil marriage law too? Yikes!
I don't mean to be dismissive. There's wonderful people who disagree with gay marriage. But the arguments against gay marriage as civil policy are just so weak...I can't respect the view. I believe in the importance of good public policy. I believe in the importance of equitable treatment. Most of all, I believe in the importance of love. I really hope I get to be proud of our state in November.
I don't think they get that far in their thought processes. They just take it for granted that America is a nation of overwhelmingly good moral upstanding conservative Christian folk who are being oppressed by an elitist gay secular Muslim Jewish atheist liberal minority.