I'm kinda curious about this changing views of the people you're getting theory to make them a dem voting bloc in the future. In this theory the bloc you're trying to win back are probably Obama-Trump voters and maybe Obama-Romney voters.
Of course, in the first place, these voters had voted for Obama. I remember at the time a lot of people thinking racism was solved because Obama was voted in so overwhelmingly, that the Republican party was going to be gone for a generation, etc. But... obviously none of that happened. I suppose the next part of the theory would go into Obama not delivering transformational change, but if you think a Bernie presidency with, on the upper end rosy projection for any candidate, 51 Senators is going to be getting transformational change...? That's also assuming the theory the only reason there was backlash from Obama is the lack of fundamentally changing the system with a 60 vote majority for less than a year is correct.
Why does anyone think these voters are gonna be sticking around and that they're interested in Bernie for the reasons they think they are?