I’m sure somebody above already mentioned this, but if gay marriage were to be outlawed, it would be because of the Christian right. Anybody who is not religious – jewish or otherwise – has no reason to outlaw gay marriage.
Now, if we allow religion to dictate law in america, the same religion that is the majority (hint:it’s not Judaism) can create other laws that would stifle our ability to serve God and obey His Torah. It is a very slippery slope.
Therefore, I am of the opinion that we should allow our elected representatives to make this decision that does not affect us in the slightest.