The problem with your last line is that you are saying it was OK for Trump to use his celebrity to speak out because (after the fact) he has been proven to have stuck to what he knows, because he won. But if “ultimately being proven right” means it was OK for Trump to use his celebrity to gain an audience, then by that reasoning you shouldn’t have a problem with other celebrities doing the same thing, unless they are ultimately proven wrong. Prior to running his campaign, many thought Trump didn’t know what he was doing and would utterly fail. Did you get tired of him then?
Nah, nice try but nah. The “I’ve touched a nerve” gambit is IME invariably used to imply that there is some sensitivity of the listener that has caused them to (over)react, but in reality *the speaker *has said something idiotic or obnoxious, and it is that (rather than any sensitivity of the listener) which has caused the listener to react strongly.
If you didn’t know this, now you do. If you did know it, stop being disingenuous.