[jswinghammer]

Yes I believe that because as a libertarian he would oppose using state power to give one group an advantage over another.

A libertarian is happy to allow any two or more adults to marry should they wish to do so. A libertarian just asks that no one's marriage is recognized by the state because it's not a matter that the state should be involved in. Can you really say that after gay marriage is legal everywhere (which will never happen) that marriage is actually equal? What about polygamists? I'm perfectly happy to allow them to obtain licenses to get married but it seems easier to just say government has no proper role in what is a private affair. This seems to make your case even better because it just removes from politics what is not a political issue.