It might not make sense to you but the majority of the country just voted for it so it makes sense to them.That election really broke the brains of some Bernie voters or vast majority of them, the left wing to right wing dirt bag movement really is a huge thing in his caucus of supporters. The whole lets tear down the whole country cause my candidate didn't win logic makes zero sense lol
The difference is the republicans have a person like Trump rise up and they probably don't like most of what he says or does but they're smart enough to take advantage of him to achieve their goals.
You can't really rise up in the democratic party like that because the establishment will crush whatever they don't approve of rather than figure out how to capitalize on it.
As long as the democrats are a party never-Trumpers feel comfortable enough to vote for they're going to struggle at the national level.