ITT: people who don't want substantive change writing off an actual progressive
Oh I'd vote for him if he ran as a Democrat; it's just that first-past-the-post means that if he gets any real support as an independent, then we get Ted Cruz or Jeb Bush in the White House. Yes, Hillary is terrible and I'd vote for Bernie in the primary rather than her, but the realities of first past the post means turd sandwich is better than gleeful destruction of the economic system (the pro-defaulters that are the Republicans).
We need instant-runoff voting to have real multiple-party representation.
I do want change, but Bernie can do that better changing things from the inside.