I would not say that everyone who is blunt-spoken is necessarily a bully. Some blunt spoken people are highly intelligent persons who get straight to the point and do not like to waste time on nonsense. Some great soldiers are in this class, including Grant, Sherman, and Wellington. Montgomery was blunt-spoken as well, though he had indeed been a bully as a youth and always tended to throw his weight around. I don't think you could say that of the other three men I mentioned. If a commander cannot be blunt when necessary, then I think he is in the wrong business. Yeager was just shooting his mouth off, a habit of the old and the bigoted. No doubt his bluntness had much more point and intelligence when he was using it as a fighter leader. Then at least he was talking from knowledge and experience.
No bastard ever won an election by promising to die for his country. He won it by promising to make all the other poor dumb bastards...