Why do disappointed Democrats blame Trump voters?

It was the Democrats who for years ignored their out of work labor constituency and their poverty, crime and drug tormented black constituency but had plenty of time to pursue such pressing issues as who gets to use the word marriage, who gets to pee in the Ladies Room, and to blame everything on bad cops.

It was the Democrats who put up a candidate who has scored low in popularity polls since the 90’s, and whose direct association with the Clinton Foundation was bound to attract attention.

It was the Democrats who imagined Bernie Sanders was an annoying impediment to destiny rather than a key element to assembling the coalition that elected Barack Obama. It was the Democrats who gave him and his supporters precisely nothing after the primaries except the privilege to campaign for Clinton.

It was the Democrats who, like a cocky athlete facing a weaker opponent, imagined that all they had to do was show up and victory was assured. So they played a half assed game and lost.

And now they are blaming the fans of the team they should have beaten in the first place.

Is that a symptom of something?