That's not how the human mind works. People still get skewed views on body standards even when they know that what they are looking at is biased and/or photoshopped, for example. When an AI fake stirs emotions just right, half the people will not even care about the truth.
At that point their ground truth is completely skewed (already for some folk), everything is relative. Some of them will probably die off in self-induced Darwin award winning ways, but sadly certain skewed world views may persist.
My generation will be the new fox news boomers, but instead of Fox news it will be ChatGPT and Claude telling them that Israel is the greatest country in the world and if you disagree you must be an antisemite.
No, it will just become like in the Soviet system - people will not believe anything anymore, and become disillusioned and just not care about anything other than their immediate surroundings. That's what being innundated with fake/exaggerated information results in. People don't know what to believe because they're seeing/hearing everything, and bits will be retained, but in general there will be a "this is too much, I can't keep up, who even knows, shrug".