Hypernormalisation is a very real thing. For example, we all know, you, me, and even our mother that 911 stink to high heaven. We all know this but we never dare to talk about it because ALL the authority figure around us denies it!
In order to be credible and break the spell something will need to happen. Something that nobody could look aways from. Example the conspirator of the latest FF in handcuff with a good press conference! You don't have to expose it all right away but at least something big to break the spell.