Those who felt pushed have pushed back
Fundamentally it was a big FU from the quiet majority that don't really factor into the thinking of the metropolitan elites. Either the politicians or the press. The more these voters were told not to vote for Trump the more they wanted too. It pretty much didn't matter what Trump said or did as long as he wasn't anything like the usual politicians. It was a rational choice for many it was an opportunity to flip the bird at Washington.
Brexit was a big FU to politicians as well, and it might well set the pattern in elections across the west.
I can only imagine that for wise Americans being asked to vote for Trump or Clinton was like being asked which leg you'd prefer to be shot in.