Your solution, in the case of trusted sources altering content to fit a particular worldview, is to look at other "trusted" sources. I think that therein lies the problem. I believe the real danger isn't people being convinced of something untrue. I think the real danger is the apathy that builds up as people can no longer reliably distinguish the truth, and they give up on sifting through it altogether, instead accepting "their truth". The vast majority of people simply don't care enough to verify sources.

This is already happening without generative AI, and this new stuff is only going to speed things up exponentially.