The reality is that the Democrats have raised to the top two unelectable candidates. One unelectable becuase their own party would predictably tear him down and then Biden. After 2016 who would have predicted the Democrats would repeat their mistakes so effectively.
Remember that the Democrats take money from the same wealthy special interests as the Republicans do. That is why they are doing everything they can to sabotage the Sanders campaign, because he represents a threat to those interests.