Trump often tries to get moderates to look at the left and say "I'm not one of them." He often trolls us into overreacting. That's kindof a natural part of politics, there's always a big center trying to figure out which side is crazier. From the left-media silo it's not obvious how good Trump is at playing media to make us seem like we are vicious and he merely speaks his mind, but he's good at that.
Tribalism, Centrism, Values
An awful lot of us are pissed off at partisanship coming from politicians — and our friends.
The ideals of a democracy where we talk to each other and are all trying to make this country better, with different views of how to make the country better, they are failing. The center is not holding.