The Democrats were only really a social democratic party for a half a century or so. Before and after, it is a pretty right wing party, and continues to be. Neoliberalism has utterly destroyed that party though, and people around the age of Beto and Harris on up (with one, possibly two, exception in the 2020 race) are gone, worthless as far as actually advancing progressive policies. They came up in an era where certain types of Democrats won, and those Democrats supported policies that were horrible failures over the long term. Not only are those in charge of the party on the far right on most major issues (they are, they aren’t anywhere near the center of popular opinion on major issues), but they have no capacity at all and no interest in imagining another world. Actual alternatives, an actual vision, policy coherence, taking on their large donors, not in the cards. And while people cheered the last election, what was the ideological composition of those that actually won? Who did organizations like the DCCC throw their support behind? There is simply nothing at all, nothing, to go on the offensive with, since you need an actual vision, policy coherence, alternatives, to organize towards. The Democrats don’t have that, and while the left is winning more than it did before, it is still way outnumbered in that dying party.
We can debate whether or not to bother to bring that rotting corpse back to life, but there is no logic as far as throwing all your eggs in that basket. There should be no more patience with just assuming everything flows through that party at this point. Its leaders cannot be reasoned with, they have no integrity and don’t support structural changes that are long overdue. They respond to threats to their power, so threaten their power one way or another. Threaten not only their power, but also the power of their worthless consultant friends, their buddies at the propaganda mills they call think tanks, their Pravda-like propagandists in the media, threaten the whole thing. If they build up this monstrous system and it cannot be reformed, tear it down and all the parasites along with it.