Most of the US believes in this, or is just unaware. That's how its been for most of history around the world.
...The remarkable issue here is the elites/rules we handed the reigns now drink their own kool-aid. The very top of most authoritarian regimes are at least cognisant of some hypocrisy, even if ideology eats them some.
The other is that people are more 'connected' than ever, but to disinformation streams. I feel like a lot of the world (especially the US fancies) themselves as super smart on shit they know nothing about because of something they saw on Facebook or YouTube.