I have dozens of friends who were energized about Bernie. 250 of my FB friends like his page. I know exactly one person who really supported Hillary. 28 of my FB friends like her page. I saw many people post saying they were very disillusioned by her becoming the candidate. I also have some very liberal friends who specifically dislike Hillary and not only refused to support her, but opposed her.

Sanders had energetic youth support similar to Obama, but more so. I believe he would have won.