@TheCobbler,
Yeah, when I watch Bernie's rallies, I can't help but notice that he never tries to quell the unruly boos or jeers about Hillary - the way Obama would do when the crowds would boo and he would say "No, don't boo - just vote".
He hears the unrest and anger, and he's not stupid so it's not like he doesn't understand that by not discouraging it, he's encouraging it.
I've said a dozen times and I'll say it again:
While it's true that Bernie has been a force for good in American politics, it's useful to remember that he is also an old man who's gotten a taste of adulation and fame and likes it, and is being influenced by that, arguably as much as any desire to change for the better the lives of Americans.