Hillary lost because the platform didn't have the words "We Oppose the Trans-Pacific Partnership", and that trade deal was Trump's big issue in '16. After what happened in Buffalo, the Democratic Party no longer has any right to demand progressives "vote Blue, no matter who". 80% of Sanders voters voted Hillary in '16, btw, which was a higher than the percentage of Hillary supporters who voted for Obama in '08, even though, unlike Bernie supporters in '16, Hillary's supporters had no valid grievances against the Obama campaign.