Yes, of course, Warren is a snake. She should be shunned by anyone left of radlib for lying about Bernie and doing everything she could to tank his campaign...
BUT... she also wasn't relevant in terms of votes and she wasn't the reason Bernie lost. Or at least, she was way down there at like #9 on the list. It feels like a lot of Bernie supporters kinda want it both ways. They want to put a lot of the blame on Warren for Bernie losing but also want to mock her for only getting like 17 votes. She got third in her home state. But it's one or the other. Either she's irrelevant and no one voted for her, or she killed Bernie's campaign.
I get the argument that she should have endorsed Bernie when it was clear she wasn't going to win and Bernie at least had a shot (and he could have used it after Obama put his finger on the scale). Of course she should have, if she had any real leftist principles - but she doesn't, because she is a snake. And I dunno, I don't know if you can expect people to just drop out. Every single politician has a massive ego (even Bernie) and they play to win the game. If we ever get to a place where AOC and Rashida both want to run for president, I don't expect them to sit down together and politely discuss who should run. It's a competition and these are competitive people.
It took all the other skde combining their power against a porgressive side split two ways to win and it was a squeaker at that.
Any bit of leeway in the system and it could have gone the other way.
Given what we have seen it's still possible for bernie to have dropped the the ball