What if your physics book is wrong because knowledge has advanced since it was released - you can still find lots of publications and people with degrees blissfully unaware of Hawking Radiation. What if your botanical book is wrong because facts have changed since then - climate is changing and so does flora. What if your book is wrong because it's state-funded propaganda mixed with petty fights of a bunch of people with suits and strong opinions disguised as academia - a huge chunk of linguistics is dealing with exactly this issue.

Again, you seem to miss the point that the idea of questioning new information, which was already useful to navigate life before LLMs, before television, before newspaper, before print, before clay tablets, even before speech itself, is equally applicable to LLMs as to any other form of communication. You just need to upgrade your strategies a little and that's it. Don't blow this out of proportion "somebody gasp lied to me on the internet!".