Fast forward 5-10 years, someone will say: "LLM were the worst thing we developed because they made us more stupid and permitted politicians to control even more the public opinion in a subtle way.
Just like tech/HN bubble started saying a few years ago about social networks (which were praised as revolutionary 15 years ago).
I disagree on the particulars. Will it be for the reason that you mention? I really am not sure -- I do feel confident though that the argument will be just as ideological and incoherent as the ones people make about social media today.
The toothpaste is out of the tube, but this tech will radically change the world.