Have you been to reddit? Or other places where political conversations are had?

Also let me ask, is declaring "The US should have strong border security and limited immigration" being "decent" because I have seen people respond to that exact statement with claims that is hate speech...

What about "There are only 2 genders"

Reddit is designed to propagate content to the front page that invokes indecency. Take, for instance, a video of someone jumping turnstiles at a subway station or a homeless person bathing themselves in free hand sanitizer solution. What kind of comments is a video like this going to solicit?

If you want to keep things decent and avoid nastiness, prohibit content that evokes a strong emotional response. This strong emotional response, unfortunately, is what keeps people coming back.

It can’t be subjective like that. Nobody will ever agree on the definition or trust whoever is making the judgment call.