> Is there some statistical analysis on the reason people vote trump ?

You could try to ask HN'ers who voted Trump why they did ... statistically speaking, folks on HN do not exactly strike me as fitting the "bunch of redneck retarded bigots" profile.

Oh but wait, that would only be possible if admitting on HN that you supported Trump was not guaranteed to have the following effect:

   - starting flamewars, which might get you banned

   - being ostracized and attacked

And turns out HN is IMO a reflection of what happens in US society at large: in the non-"bunch of redneck retarded bigots" social circles, telling people that you support Trump is career/social suicide.

Except that more than half of the country supports him, so if you pick 100 people, even in the non-"bunch of redneck retarded bigots" circles, chances are, you know ...

There is something deeply dysfunctional about a society where you have to hide your democratic choice for fear of being socially destroyed.