I think a bigger issue democrats need to face is voter turn out. Old ass republicans show the fuck up. Consistently. But young people, the ones absolutely getting fucked by Cheeto Jesus, couldn't be bothered to show up. A lot of the Bernie crowd that I know (anecdotal, I get it) and people who were for Bernie online, didn't show up to vote. They treated Clinton like she was the worst thing ever. What bugs me about that is at that point there were only going to be two candidates with the possibility of winning, Hilary and Trump, and Trump one. I saw people who were democrats tearing down Clinton and through their own inaction helped get Trump elected. Now those same people are acting like the world is ending and want to wash their hands of any responsibility for who we have in the white house.
None of us could be in all of those blue-collar states that swung for Trump, because Prima Donna Clinton promised more of the same economic hardship and distress that Democrats ignored in those states.
Most of us saw that shit coming from a mile away however (during the primaries), because independents and young voters had been rejecting tired old status quo hacks around the world more and more. It was blatantly clear when they were supporting Bernie in 60-40 margins against Clinton (and Trump).
Most of us also saw it coming from a mile away since the Clinton email shit came out in 2015, and was bound to become a hot hot mess come election time (especially when you are running against a master troll like Trump).
Most of us also saw it coming from a mile away when the DNC anointed a candidate with a NEGATIVE rating and a DISHONESTY rating which were virtually on par with Trump (versus a well-liked candidate known for his integrity, like Bernie). This is why I remember a poll saying that less than 10% of voters were actually excited about either SHIT choice. Her being corrupt for 30 years, her destroying Hati, Honduras, Libya, and the warmonger shenanigans she was trying to pull on Syria, her being the protégé of Henry Kissinger, were just the cherries on top.
Most of us also saw it coming from a mile away because economics was the #1 issue in voters minds headed into the election, and Obama had a shit shit record with at least half of the country in that regard. It should have been clear that promising a third Obama term (with warmongering pro-corporate two-faced politics to boot) was a losing proposition.
The party (and the loyalists) decided it was "her turn" though...