Clearly if the fight about gay marriage were really about gay marriage, gay rights, or even gay safety, this juxtaposition would not occur.
If on the other hand you assume it is a status struggle between SWPLs/Elites against 'the wrong kind of white people'/Christians who take Scripture seriously/et al, then this makes perfect sense.
The Islamics aren't viewed by them as a status threat, more as a client group, so from the SWPL perspective, who the hell cares what they say/want/do.
Eventually the non-SWPL white crowd is going to have to declare total political warfare on the SWPLs. Do things like put nasty Section 8 in THEIR neighborhoods. Destroy the undercover arrangement that allows NYC to be a functional city (they're allowed to do 'stop and frisk' and all kinds of things that NO OTHER CITY is allowed to do). Continue destroying things that are precious to them until they beg for mercy. Then, and only then, can you have a peace treaty.