Would my state like to step up, please?
Disgusting human filth infests your governor's mansion unfortunately.
Christie offered a referendum. Democrats didn't want it.
Democrats would make gay marriage law, but Christie proposed a referendum in order to excuse his veto and derail it. As of 2012, no state had yet successfully passed SSM by referendum, so it was his way to stop it. NJ has virtually no tradition of making law by referendum, no more than Britain does. It may or may not pass in NJ, but such an effort would be much more expensive and divisive than Christie signing it into law. (Unless he opposes SSM, in which case, what's your point?)