> Hillary and Biden snaring the nomination ahead of Bernie show how thoroughly the establishment Democrats can school him on politics. His appeal to certain voters is great, but he still has to play the game to some degree.

That is not hard when they benefit from a multiple year media blackout against Bernie. Playing the game sounds a lot like compromising on values; something which would have also led to voters losing interest. I would argue he did play the game, and that's why he lost. He did not try to draw enough distinctions between himself and Biden for fear of hurting the Democrats, and in the process missed many opportunities to call Biden out on his inconsistencies.

> Failing to even get Warren to endorse him isn't a failure of his ideology, it's a case of political incompetence.

Failing to get Warren to endorse him is not a case of political incompetence, but rather desire to gain more power by Warren. The political machine built by the establishment Democrats was always going to be put to work against a candidate like Bernie, or if you prefer, to "facilitate the gatekeepers."

> I hope someone (Warren? others?) echoes a lot of what he has to say and then actually executes within the political system we have today to accomplish those things.

Warren already executed exactly what she wanted to execute within the political system; to ensure the gatekeepers maintain order. She will be rewarded accordingly, probably with a cabinet position, if Biden somehow manages to win the Presidency.