I agree with you mostly, but in my experience, there are just some things that you don’t put to words, as there are some real lunatics (read HilLIARY) that think it’s OK if it’s been spoken.
I agree with you that’s not OK and the question is are Trump’s opponents willing to stay within accepted boundaries?
Trump reached out to them with an olive branch. If they don’t want to grasp it, its their problem.