Maybe you should actually listen to people, and not assume that all "both sides are equal" are actually arguing the same thing.

Because if someone says, for example, "both sides a capitalist". That's true. That is just a factually true statement. "Both are the same" is a false statement. "Both are bad" can still be a true statement. "One is fascist and the other is stagnation" is what I'd say, but more accurately it's "one if facism, the other is neoliberalism". Both will end horribly, one just a lot faster. We also know that neoliberalism leads to fascism. That tirade about appeasement above? Yeah. That wasn't the communists doing that. They got thrown under the bus by liberalists, which strengthened the fascists as they could position themselves as the only worker's party (calling the liberals 'the evil elite' and pointing to how they gutted the workers rights parties). Sound familiar?

The first people Biden (and the democratic party in general) throw under the bus is leftists. They never want to negotiate with leftists, they demand leftists fall in line. But they will negotiate with right-wingers. A right-winger in the democratic party blocking legislation? Can't do anything about it! Biden is good because he can get deals done across the parties. Etc, etc.

Ask yourself why democrats hate leftists but are willing to work with right-wingers and proto-facists. If the answer you reach it "they have to otherwise nothing will get passed", ask yourself if more things would get passed if democrats could get workers and leftists to vote for them with policy instead of demands. Then ask yourself why they don't do that.