Bernie isn't denouncing the people that some on the Left think should be denounced. He's not rolling over and letting Hillary take the position that she's "obviously" earned.
This is how the Left treats Republicans. "Say what we tell you to say! Don't represent the people who support you, just get out of our way!"
Two months ago, Moulitsas declared the primaries effectively over and banned from his site “malicious attacks on our presumptive presidential nominee or our presidential efforts.” Last month Drum said Sanders was “basically running a con … we were never going to get a revolution, and Bernie knew it all along.”Why don't they just crown Hillary queen and stop all of this other nonsense?