Coming back to this, I'd like to suggest [0] - it is possible for things to be both popular, or commonly known to be true, or what have you AND still be impossible to support or acknowledge without consequences. I think [1] feels relevant to the general situation of "X is declared to be true" as well.

0: https://slatestarcodex.com/2018/05/23/can-things-be-both-pop...

1: https://slatestarcodex.com/2017/10/23/kolmogorov-complicity-...