I agree, that's why it's baffling to me that Trump is so popular

Well she got damn close in the popular vote. She didn't win but you can't dispute that she got farther with a center-left platform than with the far-left one Bernie's running with. Dems making big changes has historically been during recessions (FDR in the 1930s, Obama in '08, Biden in '20).

People are afraid of change. Think of the uproars caused by seatbelt laws or smoking bans.

I'm not advocating against universal healthcare, but many people visit the doctor without incurring serious debt and that's good enough for them.

I imagine they have to win over the centrists in order to get enough votes. Republicans are all unified under Trump for one reason or another (some are raging cunts, others are hoping for cheap groceries). Bernie hasn't become POTUS by preaching solely to the most progressive Dems.

Damn, next you're gonna tell me he may even have a 720 FICO score

Sanders was too radical for like 80% of voters, even for many Dems. Good policies, but sudden change doesn't go over well with voters even if it's a net positive.