Yes. The idea of letting religious beliefs influence the legality of marriage is absurd. It would be impossible to realistically apply all of the different restrictions of every different faith. Nobody could be legally married if we took that approach. So, unless the government favors some faiths above others (an undeniable violation of the principle of separation of church and state), religious argument is irrelevant.
So the only point the opposition really has is that the majority (potentially) believe that gay marriage should be illegal. To me the idea of majority rule seems inherently corrupt and fundamentally flawed to the point of being untenable. But even if we accept that idea, it comes down to more of a technical issue with regards to this specific situation than a point against gay marriage itself. And it also assumes that the majority <i>is</i> against gay marriage, which is a questionable assumption at best.
