Pushback against smug righteousness
Funny how a left-wing idea or candidate is defeated, and it's because people are stoooopid and racist and just horrible people. Yet when the left wins, it's a glorious mandate from an enlightened electorate. This kind of smug, insulting arrogance is just the kind of thing many Trump voters were pushing back at. Being told "You're either with us, or you're a Misogynistic Racist Fascist Nazi!" rightly gets people's back up.
Plenty of people voted not for Trump, but to keep out a person they saw as a greater threat. In other words, "Please Not Another Clinton Or Bush". Given her widespread backing from The Establishment, she's capable of doing far more damage than the Total Outsider. Trump can say or propose anything he wants, but Congress must put it into law or not, and the Supreme Court can strike anything down. I'm not for him, but I fear him less.
This election was a repudiation of Hillary (rejected twice now), both political parties, and their attempts to control elections. If we had had a better candidate, we would have gladly voted them in.