Sometimes you worry about cause, sometimes you worry about effect.
In terms of effect, Trump's a white nationalist.
In terms of cause, Trump has all the component parts of a white nationalist but is really a crass, stupid, empathy-lacking opportunist when you look at his likely fundamental motivations. He might enjoy advocating the execution of innocent black men - and even spend money on the project - but if he had an opportunity to make a big profit off defending them he likely would attempt it.
The problem is that, as simple a person as Trump is, people are saying you need a lot of bigly words to describe him. The best ever words, believe me.