Atrios is not normally this long winded, and he certainly makes many of these points on a regular basis, but shit is fucked up and bullshit.
The other is from Dean Baker at the Center for Economic Policy Research (CEPR). It's a bit harder to read, but does point forward rather than back. He concludes:
I would argue that we have pursued policies that have been deliberately designed to shift income upward over this period...It is understandable that the losers from these policies would be looking to lash out at the winners. Voting for Trump was a way these people could spit in the face of the people who they see as wrecking their lives.
It’s not pretty, but the best way to respond is to give them real ways to improve their lives and stop having all the benefits from growth go to those at the top. Trump is not going to help the people who have been left behind, and we have to make this fact as clear as possible. But we should also be showing them policies that will have substantial and direct effects in improving their lives.That's pretty much how I feel about why people voted that way, and it pushes on my frustration with the Democratic party these past  years.