Let Bernie's blood be upon the left and upon the left's children.
They chose Warren, AOC, and milkshake-throwing dorks over socialist Jesus.
Bernie was never the "most left," just as Jesus was not the "most Jewish," whether according to the Temple priest Sadducees, the info-gatekeeping Pharisees, or the purity cult Essenes.
Barabbas was just some random insurrectionary against the occupying Roman Empire, while Jesus said to not worry about the Romans because there were far larger problems headed our way -- the literal end of the world as we know it. Of the two, Barabbas was more of a polarizing, culture war, troll-the-enemy figure. Jesus' message was more universal, regarding both the problem and the audience.
Bernie was content to render unto the Cultural Right what is theirs -- the 2nd Amendment, strong borders, the Electoral College, etc. His proposed revolution fell under an entirely different domain of matters, and he meant it to involve and to benefit people from across the spectrum.
The growth of populism, socialism, whatever you want to call it, will never proceed through the left, any more than the growth of the Christian movement went through the Jews. It will go through the masses of people who are culturally alien to the left, just as Christianity only resonated among Gentiles.
Socialist apostles must ignore the left from now on, and send missions instead to the normies, respecting their unwoke beliefs and behaviors.