The sad thing is -- and I don't mean this in a nasty way and I hope it doesn't come across that way -- but the average Trump voter is, or is supposed to be, someone whose lot in life is not going well and feels ignored by the political process. I guess voting for Trump -- in light of the above -- is just evidence of their poor decision-making skills. That based on their personal feelings they chose the candidate least likely to help their situation.
As an example, I still think of the woman at the Trump rally in New Hampshire, the one that was all aglow about The Don. Her husband had worked in a local industry for thirty years only it closed down, moved away and now, she said, he works 16 hours a day at two minimum wage jobs to make ends meet. The reality is, people have been warned for at least thirty years not to assume they have "lifetime jobs." That you need to keep upgrading your skills, looking for better opportunities. That if you allow yourself to become complacent then you are quite likely to suffer the way this man has. (Personally I'm doing okay but I'm on my third 'career.')
Clinton's solution was to make retraining available to men like this woman's husband at no cost or low cost. Maybe have government play a role in finding a job he could fill, once he got some new training, by developing job banks. Trump's solution was to build a wall on the U.S.-Mexico border.
She chose the wall.