I agree that McCain is awful but attack him for his politics not for his POW status.
Trump has a more traditional view of what a “hero” is.
Audie Murphy would be a good example, not a ex pow..
I suppose that the younger generations do not understand this concept. But back in the day, POW’s were not considered hero’s and in fact a hero was a defined thing, not a general term for a veteran, fireman or policeman.