You're getting downvoted for this bullshit misinformation:
Also as much as people hate to hear it, he couldn’t even win the support of the Democrats, there’s just no way he would win a general election.
That's pushing the fallacy that partisan primaries are somehow necessarily picking the candidate most likely to win in the general election, but they're not. And the assumption breaks down particularly hard in Bernie's case, because a huge part of his path to victory would've been his ability to transcend American political parties and draw a lot of support from exactly the people who ended up voting for Trump because they wanted to burn down the political establishment at all costs. He, uniquely among Democratic candidates, could've beaten Trump at his own game.
But that would've required neoliberals to "vote blue no matter who," so we got fascism instead.