Unfortunately, this is a textbook example of the left using division and hatred as a political tactic.
The only losers to be made out of the SSM debate are Americans who honestly and ardently believe in the sanctity of traditional marriage. Now, this isn't to say that opponents of gay marriage have good reasons for their opposition - because, quite frankly, they don't. However, the narrative that opposition to SSM is rooted in hatred and bigotry of homosexuals is just plain wrong: if that were the case, we'd be seeing calls for the criminalization of homosexual activity, et cetera.
Rather, the American left is much more comfortable using gay marriage as an issue to drum-up electoral support among the hopelessly young and mindlessly cosmopolitan for an agenda that actually comes at the expense of the working poor, racial relations and the environment. Such is the problem when a center-left party tries to build a base by appealing to conservatives.
Hey, remember 2004 when Republicans used calls for the criminialization of homosexual activity as an effort to drum-up electoral support? Good times.
It blows me away when Republicans claim it's hypocritical to support gay rights while not supporting religion's right to infringe on gay rights. It's not hypocrisy, it's consistency.