I think what vta is worried about is that churches will be forced (no matter what their stance on gay marriage) to perform marriages for gay couples.
I honestly think it's larger than that. It's an anti-Christ spirit of moving towards persecution of Christians.
You already see the one sided hate in this discussion from someone pretending to espouse tolerance and the understanding of love, yet magically misses the nuances of human life without stark blacks and whites of love/hate agreement/disagreement.
This generation thinks it has progressed. Simply because it has refocused it's hatred into another area or demographic. The progressive 'we' assures all that since they no longer hate blacks they're advanced, despite the obvious hatred they have for another group of people for different reasons. Yet hate is hate. And of course as convincing as it was as to why blacks were inferior in the ago, so too are the arguments against those hateful bigoted Christians. There'll be talk of how it is diferent, but it's simply subjective posturing to validate that continued hatred.
Mind you, I'm neither surprised nor overly concerned. I read the bible every day and it basically tells of what we're seeing and I'm far from being caught off guard.