You seem to be lost in a sea of relative opinion, and of all viewpoints being equally valid/stupid. That's far from always the case.
Again, by this logic, we should never address crime because by it's very nature a court case is trying to establish what are or are not real facts about a case in the face of conflicting opinion. Are we too stupid to have courts?
If not, then we're not too stupid to evaluate reality. That doesn't mean censorship. I'm not advocating censorship. I just don't think we're on such a foundation of sand as your comments assert.
Edit: I am rate limited so can’t respond below, but I wanted to say in response - I disagree that we don’t have the ability to say some things are counterfactual, and I also disagree that admitting this implies censorship or other authoritarian action is either good or necessary. I further disagree that communication is sufficient on its own when propagation of counterfactual information costs lives. Is there another solution? I don’t know, but I do think better education has to form part of it.
Does scientific knowledge “dictate facts”? It tells us some things are wrong, while leaving open the possibility of further learning.