The McCain family are not the only ones with a legacy at the USNA. I have walked through the Cemetery and Columbarium there. I actually have a relative who was the Secretary of the Navy, so your words add up to squat.
I can see why the alt-right doesn't like McCain and will do or say anything to smear him. If he killed his shipmates, why wasn't he courmartialed or even charged? You think they give out the Silver Star, Bronze Star, Purple Heart and Distinguished Flying Cross to anyone?