The Democrats need to stop fetishizing conservative white working class people. How many times are these fundamentally right-wing voters gonna snatch the football away before the left learns their lesson?
The problem with the democrats right now is that forming a coalition of minorities and college educated whites isn't feasible. They have to broaden their base somehow.
They'd have to improve their margins with college educated Whites (a group that Trump won, lest we forget) by a LOT if they want to win, though. Let's not act like college Whites are the bedrock of the Democratic Party, they literally voted more Republican than Democrat.