It was democrats punching left while fawning to the right that brought us the ACA. It was democrats that killed the single payer option.
It was democrats that passed the crime bill that lead to our privatized incarceration state and swollen prison populations. The 'Tough on Crime' posturing such as Kamala Harris is familiar with.
It was a democratic socialist that said we could not have social justice without economic justice. I'm all for social justice. But as the democratic party has largely abandoned economic justice in favor of corporate support, I don't know how solid any gains will be. Witness the current right to abortion...
On the other hand, run on ACA, gay marriage, big tent jargon in 2020. I'll see you at the victory party.