Excluding incorrect views is difficult. If you only do it lightly, as is done with the holocaust you don't get very far. If you go further, say what China is do

Excluding incorrect views is difficult. If you only do it lightly, as is done with the holocaust you don't get very far. If you go further, say what China is doing, you get quite a lot of criticism which can be a problem. You also risk succumbing to your own biases and excluding information that is correct. If that happens and the truth comes out, which it always does, your state eventually becomes unstable.