>The problem is, the reason it does win votes, and the reason a lot of people want "law and order" and "tough on crime", is because they reason it won't apply to them, but to "those people". What is "those people" defined by in their minds, at least to a first a approximation before they consciously reason about it? Race.

Well, race or nationality. I don't think Trump voters think American citizens will be subjected to authoritarian measures, or should be. They think their in-group is safe.