Not that I want to split hair but in the examples you gave:

1) Subjective

This is an opinion, not a fact.

2) Objective

I agree. But that does not make him "objectively" wrong.

3) Subjective

Without starting a discussion about Trump alleged racism, whether or not a somewhat isolationist policy would either divide our country or make American innovation suffer is a matter of opinion, not facts. Some other prominent investors seem to disagree.

Besides, examples in our history would tend to show the contrary (I am referring to Roosevelt policies after the '29 crash).

4) Subjective

Unless SCOTUS rules that his stands are unconstitutional, it's only a matter of interpretation.