It does, both sides got about the same amount of votes as you can see.
> It feels much more like the Democrats ignored (or were perceived to have ignored) a lot of substantive issues for a large section of the population.
I don't think so, it doesn't matter how much you try to do for people if you also namecall them at the same time, they will assume you aren't on their side even if your policies are better for them. Vitriol ensures the vote becomes tribal instead of rationally inspecting both sides and picking the better option.
This can be seen as the democrats also not understanding the average person and this is where Bernie was actually hitting good points, his message was consistent and he was never demonising Trump on his name but explaining what they could do better by explaining policies in a way that people understood what they would get from them or lose if they didn't get implemented...
Of course the issue is a bit more complex, but they exacerbated the people that were unseen instead of helping the healing and some actors of course were way too happy to fan the flames.
This is a very bad day that is marking the beginning of a very bad period for everyone...