Perhaps it's a linguistic confusion? Civility means that I'm polite as I correct your mistake, and laws should not cover civility. What laws cover is harassment

Perhaps it's a linguistic confusion? Civility means that I'm polite as I correct your mistake, and laws should not cover civility. What laws cover is harassment and threats. In some places there are also classes of hate speech that are prohibited by law. That's still much narrower than a general rule of civility. It's also a bad idea in my opinion, even though I'm a big ole SJW.