Unfortunately, what this election does is basically validate Trumpism. The voters could have overwhelmingly rejected Trump and his ideology, sending your party back to the drawing board to hopefully come back with an ideology and political playbook more suited to your beliefs.
Instead, the main takeaway here is going to be "Democrats failed downballot and only narrowly won the presidency, in a year where all the fundamentals were against us. Let's do it again."
Or Trumpism blew an easy re-election (perceived good economy + incumbency)
He’ll probably lose by the reverse EV total of 2016, and by a >4 point national margin. I don’t see that as a win.
