I don't see it so much as protecting people from bad information as protecting people from bad actors, among whom entities like Facebook are prominent. If people want to disseminate quackery they can do it like in the old days by standing on a street corner and ranting. The point is that the mechanisms of content delivery amplify the bad stuff.

It’s a terrible idea and creates more problems than it solves.

You eliminate the good and the bad ideas. You eliminate the good ideas that are simple “bad” because it upsets people with power. You eliminate the good ideas that are “bad” simply because they are deemed too far out the Overton window.

And worst of all, it requires some benevolent force to make the call between good and bad, which attracts all sorts of psychopaths hungry for power.