Jon Stewart torched the DNC and Democratic leadership as "lost" after learning from a candidate with a massive lead that he's heard zilch from the party.
I think you’re missing the whole point of OP. The democrats exist to be a bulwark against leftward movement on the US political spectrum. Your point that the democrats allow progressive voices to exist within the party rather than outwardly excluding them actually reinforces this argument rather than weakens it. It creates the illusion that the Democratic Party is a leftwing party why the pragmatic end result is that the democrats do not produce leftwing policies.
This is all in the interests of their powerful megadonor who, make no mistake, would rather lose an election than let a truly progressive leader come to power in America.
I think you’re missing the whole point of OP. The democrats exist to be a bulwark against leftward movement on the US political spectrum. Your point that the democrats allow progressive voices to exist within the party rather than outwardly excluding them actually reinforces this argument rather than weakens it. It creates the illusion that the Democratic Party is a leftwing party why the pragmatic end result is that the democrats do not produce leftwing policies.
This is all in the interests of their powerful megadonor who, make no mistake, would rather lose an election than let a truly progressive leader come to power in America.