I doubt Shaun truely believes this 9/11 conspiracy stuff. Kinda like the Flying Spaghetti Monster. Nobody actually truely belives in the flying spaghetti monster, but they will say they do untill they are blue in the face just to make the point.
If the President at the time of the 9/11 attack happened to be a Liberal/Democrat, Shaun wouldn’t be “questioning what goes on around him”.