If there’s one thing I’d hope that Democrats would learn from Trump’s successes, it’s that playing the part of the staid, respectable, traditional politician is not a winning strategy. I don’t think it’s reasonable to suppose that adopting better policies will, in and of itself win elections; Trump has either terrible policies or none whatsoever, and voters still eat him up. He’s a carnival clown, and that’s what the majority wants.
Get out there and start screaming. Throw tantrums. Take credit for things (preferably good things that you did, but again, Trump proves that all you really need to do is take credit, period, and let reality try and catch up with you). Democracy is a shared hallucination, and Trump has proven that if you employ sufficient pressure, you can change the nature of the dream, policies and reality be damned. If Democrats don’t accept that public perception is reality and adjust their strategies accordingly, they and we are going to continue to get fucked for the foreseeable future.
Without becoming the worst version of what they hope to defeat, they at least have to acknowledge that the game has changed. Democrats are still trying to make three-point baskets while not doing much more than tut tutting about the fact that Republicans have set up a step ladder and are dumping bags of tennis balls through the hoop on the other side of court.