The technical distinction are becoming less and less compelling. The whole "Things will get better if you just vote for our chosen establishment democrat one more time." starts to wear thin after decades of 0 substantial results and, more often than not, straight up complicity in the worst crimes of the far-right.
Establishment democrats support the corporate aristocracy and banks just the same, they barely fight for really basic stuff like civil rights and only enough so they have something to point to, not to actually fundamentally change anything in a way that the right can't just reverse. That's why we are where we are right now, the Conservative Democrats' greed and lack of spine has allowed the far-right to capture the courts and undermine our institutions, unopposed over the course of 40-ish years.
The Democratic party is the only one with potential to change, but that's never going to happen if they can just keep doing the pied piper shit and getting re-elected. For all intents and purposes they are identical.