I think this is a better model here,
“To win voters to his cause, Trump tapped a vein of nationalism that social science calls honour culture”
“Honor Bound, a new book by social psychologist Ryan Brown, lists US states by how concerned residents are about their reputation and their desire to retaliate against perceived slights. The top 10 are South Carolina, North Carolina, Alabama, Georgia, Arkansas, Mississippi, West Virginia, Virginia, Tennessee and Texas. Trump was victorious in all of these except for Virginia.
Romney won 8 of those states. Maybe (no) that tells us something about Republicans in general, but that tells us nothing about how Trump is different from Romney. Did Trump even do better in those states than Romney did? He did much worse in Texas.
OP’s link is more about the reason behind voter shyness, where as your link is more about the reason behind voter choice. But yea, I agree mostly with what your article interpretation too.
That was remarkably close to the default assumption...