>What policies did the Democrats actually implement over the years?

Roughly in order: Don't Ask/Don't Tell repeal. Dodd-Frank. Lily Ledbetter (extends the statute of limitations on equal pay suits). Making it clear that sexual orientation and gender identity are equal to race in hate crime law. Banning lifetime coverage caps so your insurer cannot simply decide your life is not worth living and banning the practice of excluding pre-existing conditions from healthcare coverage so that you are not enslaved to whatever employer you happened to be working for when you got the worst news of your life. Establishing the CFPB to end unfair credit practices like medical debt reporting. Capping the cost of insulin at $35 per month for Medicare. Allowing Medicare to negotiate drug prices. ACA subsidy expansion. People our normie centrist presidents put on the bench decided Obergefell. People our normie centrist presidents put on the bench are protecting human expression.

You have to engage in motivated reasoning not to recognize these things as making life better. If you want to make life even better, consider voting for Democrats. When you don't vote for them, they become the minority party. When they are the minority party, no amount of impotent screaming or saying please can turn 49 votes into 61 votes, nor can it force Republicans to help them help you.

Bernie is a loudmouth with almost no legislative accomplishments that spent his life building his own brand and ratfucking the party. Of course the party leadership doesn't like him. When you get a rock in your shoe, do you like the rock?

Actual leaders are in the trenches right now embarrassing the GOP with this shutdown to force them to make COVID-era healthcare subsidies permanent. What's Bernie doing except derailing news events to complain that party leadership isn't supporting his faction in comparatively irrelevant local races?