It was 2 million for Clinton over Trump in popular vote in the general election. Bernie collected 3.7 million fewer votes than Clinton did in the primary. Not that either matters. It's all about delegates and EC votes. Especially the primary, I'd like to see it switch to a popular vote. While I'm not totally against the EC, a switch to popular vote for president would be OK with me too.
As far as racism is concerned, there is pretty good evidence that about 25% of the nation is very racist. I don't know why you'd think this is something that is not true. The rest of Trump's support coming from racists? Well, you are right in that it is a sweeping statement that is probably false. I'm of the opinion that the majority of Trump's voters didn't care about racist policies and voted for Trump as a "change" candidate.
Still, without making a claim of proof, I ask, how can a person support a candidate with racist policies and who makes racist or bigoted statements and not be racist or bigoted themselves?
@Padawanbater2 brought up a valid point that Bernie did better in blue and purple states than Clinton did. These are the states that Democrats HAD to win in order secure the presidency. Yet, states like Mississippi, Louisiana, Texas all had an outsized effect on the primary given the fact that those states were NEVER going to vote for a Democratic party candidate. The DNC awarding delegates according to a pretty arcane system that does account for previous election results but why Texas had 252 delegates while Michigan had 152 is beyond me. To me, this skewed the primary to accrue meaningless delegates for Clinton and made the overall primary more difficult for Bernie to win, given that he was almost unknown in the south, and a Yankee to boot.
Also fuck the super-delegates. They can stay home and watch on TV. Bernie's team tried to get them eliminated but ended up with compromise that reduced the number of SD to a smaller number. Now that Clinton no longer holds a position in the party, maybe they can revisit the agreement to write them out entirely.