A currently existing social norm basically says that everyone has the right to an opinion on anything, no matter how little they happen to know about the subject.
...what if we had a social norm saying that by default, people do not have the right to an opinion on anything?
I get what you’re saying, but I don’t think that’s quite the problem.
The real problem is the social norm that says “you aren’t allowed to be critical of someone else’s view because everyone has the right to an opinion”.
The italicized bit is the problem. I think everyone should have the right to an opinion, but also that everyone should have the right to be able to express criticisms of other’s opinions.
(I think the “you can’t criticise other’s views” thing stems from relativism).
Greg Egan