The bad news: The most evil people in the world spend billions every year on the largest propaganda machine in the history of man, and it enthralls a large minority of us.
The good news: That's what it takes to maintain this! This many people living in a bubble of unreality is not natural! It is the product of a machine built by man, and all machines built by man are destined to eventually fail. Maybe the right person dies at the right time. Maybe the conflict between their narrative and reality eventually becomes too much. Maybe they lose control of the story and the movement splinters into hundreds of contradictory conspiracy theories that no longer move in lockstep. Maybe the magic just wears off one day.