This op-ed piece sums it up pretty well:
Many of these people voted for Trump not because they like him or his policies, but because they just wanted to put up a gigantic middle finger in the face of the establishment and the mainstream media. Whether or not Trump is really such a middle finger is highly questionable, but that’s not the point. The point is enough people didn’t buy into the hysterical claims about Trump in the run up to the election, otherwise he wouldn’t have won. The lesson Trump opposition should have learned from Hillary’s loss is that the “just act like insane lunatics” approach to Trump doesn’t work against him. This would’ve been the logical conclusion reached upon genuine reflection and introspection, but this is not what happened.
Indeed, what many so called “liberals” have done in their post-election meltdown is fully embrace exactly what they have always accused the opposition of being — warmongering, racist, hateful, insensitive lunatics. In their clouded hysteria, many of these people are turning into the monsters they claim to be fighting.