@hightor,
That's axiomatic, but, I believe, misses the point. Bernie has maintained a cadre of very dedicated followers since the 2016 election: a fact which appears to be largely the result of the dedicated authenticity and candor he projects. I certainly don't agree with his policy proposals, or believe he is either capable of making them work, or winning a Presidential election. However I do recognized the loyalty he is able to excite among a large minority of Democrat voters - even in the face of competition from other Democrat candidates advocating a similar platform..
In contrast My strong impression is that Hillary had an enduring "likeability" problem throughout the Clinton era, one that continues today. She projects needless abrasiveness, self promotion and contempt for those who don't support her. Not very likeable characteristics, and I believe that contributed significantly to her defeat in 2016.