More than a little patronizing there, I think. Saying folks "haven't quite come around" to gay marriage is fairly ridiculous when LGBT folks are still
victims of violence and being killed (like the Orlando mass shooting). The LGBT movement isn't fighting for simply gay marriage but instead a mainstream acceptance of the LGBT community. The gay marriage decision is but one facet of it. LGBT movement has evolved from Stonewall to this point. It's gone from arrests, to religious conservatives castigation, blaming the AIDS crisis, and
violence committed against them. I don't think grandma and small town folks are victims of violence simply for being that.
Let's just remember that the many, many Trump supporters still believe that Obama was born in Kenya, is a secret Muslim, and other claptrap. By indulging that - showing "patience for grandma or religious folks who haven't quite come around to the evolving definition" - line of thinking then one implicitly validates it. So it's okay to give grandma a pass for Birtherism - do we really think she believes Obama is from Kenya or Muslim? Or do we think she's a tiny bit uncomfortable with a black president? - but not for being hostile to LGBT? Like most free speech, it's one thing to say "I don't like or believe in gay marriage" but another to actively work against it. So things like the Indiana "religious freedom" bill or the KY "gay marriage license" crap are not so much a concession to religious freedom but an assault on the Bill of Rights.
If we're fighting the Culture Wars from the 80's again then so be it. But let's not act like this election is a repudiation of whatever progress in the national dialogue has been made. It's by aggressively pushing the agenda for gays and LGBT community that got it this far. Grandma and the small town folks might not be comfortable with the "progress" - or the rate of it - but it's occurred nonetheless.