It seems like everybody is trying to work out who voted Trump. In the same way that loads of people where trying to work out who voted in favour of Brexit. There is a sense in which maybe if we can work out who voted that way we can work out why they voted that way.
The Economist has done a nice piece of analysis looking at how (poor) health is a good predictor of a swing to Trump in areas that were already republican. Interestingly (to me) this is based on not a single measure but a whole basket of public health measures and is a (slightly). This is actually a slightly better predictor of the swing to Trump in republican areas than looking at the numbers of non-college educated white people (though those two factors are often related).
This still doesn’t really answer the question of why they voted this way. A Trump administration is not likely to improve public health one iota. The Economist suggests that unhappy, unhealthy people were voting for change. Maybe that is true, I have no reason to suppose it isn’t.
But democracy, certainly the US presidential election and democracy in the UK is a practice of choosing from a short list. We do not know, on the basis of the vote, why people made those selections. We have to infer and theorise. And most of those theories are politically loaded. Did people really vote to leave the EU because they wanted to end immigration or was it to free themselves from the EU legal system. Did they, in fact, not vote to be poorer?
And those who say they do have an angle.
Facts are hard, to get and to confront. So much easier to guess, or speculate or state with confidence.