Nah, it definitely comes along for the ride. Maybe watch Folding Idea's (lengthy, sorry, he does that) documentary "In Search Of A Flat Earth".
That documentary is about QAnon (not about the "Flat Earth" per se) but it helps you understand that "But that's nonsense" is the point. I call this "Facts Aren't True" because that's the core of the idea. They don't like facts, the facts are uncomfortable, they can make up a better truth which does make them comfortable.