No the issue will be dead in a few years, because it will be clear to everyone that SSM is the law of the land - everywhere - and that public opinion is against changing that, so it's a dead horse. I mean how much action is there about prohibiting the sale of condoms these days?
So you think it would be a Fluke if it turned out that SSM was more controversial in a few years than contraception is now?
Haha. Contraception is not controversial either in the public square (e.g., something like 95% of Catholics and Fundamentalists use it) above and beyond the notion that is should be singled out as a medical service for which it is illegal unlike most other medical services, to levy a co-pay.