You have no idea of how he served this country in Vietnam when you come up with a statement like that. Go do some research.
He did nit have to go. He went. W’s family helped W not go. Politics aside, one of the two men went to serve his country. W’s father had no trouble finding his way into the military.
Denigrating people who serve their country because you don’like their politics is absurd and shows blind loyalty to politics. Blind loyalty makes one blind.