I’ve got two questions for you. How? and Why?
The How? part: AIUI, the Democratic primary process is pretty transparent and un-gameable. They could do the same thing as the GOP did in 2016 and make things winner-takes-all in the hopes of quickly giving the preferred candidate an unstoppable lead… but we saw with Trump how badly that can go off the rails if you miscalculate. So what “despicable deeds” could they pull off to make Biden the crowned winner?
The Why? part, which is more important if you ask me: I can absolutely believe that many, though far from all, of Democratic party insiders prefer Biden to Warren. They certainly prefer Biden to Sanders, who’s in the Dem primaries for opportunistic reasons and is a literal DINO. But I don’t see any evidence that they would somehow ram Biden through if someone else wins the primaries. They didn’t do it with Clinton in 2008, despite her being the initial favorite and the party establishment candidate, when Obama overtook her. And they didn’t do it in 2016, despite Bernie’s campaign trying to argue for the superdelegates to abandon the clear primary winner, Clinton, and back him.
The Democratic party leaders and insiders are no saints, obviously. But they want two things very much: they want power, and they want to take out Trump. And the best way to achieve both of these goals is by putting up the best candidate they have and then doing everything they can to get out the Dem vote, and to move as much of the independent voters behind the Democratic candidate as possible. And pulling some transparently anti-democratic trick to make Biden the candidate, alienating people in the process, would make it much harder to get that vote out and to beat Trump.
Basically, the whole “Biden the candidate, no matter how many people they have to alienate and what despicable deeds they have to do” scenario you talk of does not make sense. And the stuff about “too committed to losing” is just your pessimism and insecurity talking, likely reinforced with a bunch of bullshit and lies about Clinton somehow cheating in the 2016 primaries (she didn’t) or the DNC robbing Bernie (they didn’t).
