What is misinformation? Does just being wrong count, or do you have to prove malicious intent? How do you prove intent? What about things that were correct at one point in time but aren't anymore? What about things discussing or analyzing the misinformation, that by definition requires showing/spreading it?
How about you just let people be free? Some people are stupid. You're never going to stop that. But the paternalistic "just filter it out" nonsense isn't the panacea those in favor of it think it is.
Rather than acting like everyone else is an idiot, perhaps explain your points rationally. You might even convince some fence-sitters or make folks who disagree with you less sure of their positions.
But the tone of your comment is very much "it's obvious, you dumbasses" which only entrenches those whose minds you'd presumably like to change.