How deep a sense of entitlement does it require to feel betrayed by Sanders, because he stopped chasing the impossible and "endorsed the enemy"?
Seriously, he hasn't stopped being a crusader. He hasn't stopped being a "socialist."
He said "Let's shake up the world," and you did.
He didn't put himself on a pedestal - the fans did. Now those fans feel betrayed because he didn't stay in that on that pedestal.