Montessori Schools, Mondragon cooperatives, and such are good first experiments, and we should be learning from them how to better construct institutions in which people actually enact their own beliefs and opinions by actually making decisions and taking responsibility for their own daily lives, in accordance with intrinsically motivated self-discipline (which, notably, requires less reward-and-punishment enforcement infrastructure!).

If you object to the very principle of equality between people, fine, but at least object out loud. Don't come telling us that "sit down and shut up" is a means to any ends other than regimentation itself.

Because people are different and hold different beliefs. I know some of my beliefs are upsetting to certain people, so I hold my tongue in regard to those beliefs around those people, because I care about those people.

Also, I didn't say "let's force people into regimented uniformity". I said, (perhaps not directly enough) being able to silence yourself is useful. Some people simply do not know how or when to stop talking. It's always painful to watch as they dig themselves deeper.