"Let common sense prevail rather than socialist intervention"
Your  'common sense'  conservatism basically amounts to anti-intellectualism and anti-elitism, which is so popular in the U.S. these days. 
And what is "common sense"? Yours probably differs from mine, or someone else's. Historian Yuval Noah Harari has pointed out that common sense is simply an accretion of cultural biases. It is not as good a tool as reason to solve issues.
Kingswell's points are well taken. Our default irrational brains are not wired for methodical, thorough discussion and airing of deeply held beliefs.
We need some mutually-agreed-upon rules, some form of "social scaffolding" in this regard.
Limiting interruption would be a start. For example, No complicated theory -- evolution, behavioural economics -- can be explained in a classroom if the professor is constantly interrupted. Today people are just talking over each other. Thus complicated ideas are victimized, simple ones take route.