It isn’t really historically speaking, until recently college graduates actually trended slightly Republican, but it mostly just wasn’t a demographic you needed to weight for. For that matter, even the rural/urban divide just isn’t that old in polling terms. Don’t get me wrong, the pollsters who weren’t doing it should’ve seen it coming, since it turned out to be significant well before election day, but it wasn’t exactly something that had been there a long time.
Apart from that, I should also note that some of this perception came from two other issues. One, that a huge portion of the 2016 electorate was undecided, and broke for Trump at high rates. And two, that the third party vote was rather high (not Ross Perot levels or anything, but significantly higher than typical).
As for on the current topic of guns, all I’ll note is that assault weapon is a very, very stupid term (not directed at any of you, but frustrates me due to the bad attempt at PR, with no clarity, that confuses discussions on the topic).


Some juicy ones and wouldn’t share in pubic too. 
=Trump wins!
