Gushee is right about the split among evangelicals, although they have been headed that way for a while.  Of course, it may simply be a transformation toward the Millennial generation, with the older conservatives having their last hurrah with Trump.  Whether the anti-gay marriage crowd will be able to do anything is questionable.  They could not do anything about interracial marriage either - and the religious freedom issue is likely dead at the hands of the courts (although the anti-abortionists are still trying to draw the magic court case they will never get) and the whole focus was more anti-Obama than anything else - just like the opposition to the Affordable Care Act (rather than just the taxes on the rich that fund it).  If Pence were to do a Cheney on cultural issues, he would not get far.  Most of these issues are constitutional law, which puts them safely (and thankfully) beyond popular opinion.