@aral sorry, bear with me. I'm not steeped in US usage. How do I express the one without implying the other?
I want to express e.g. "I think trans/racist/gender slurs are nasty and I don't want to see them, ever" without writing a sermon and without inviting rules lawyering of the "but you didn't list this kind of nastiness".
"Be polite to everybody" used to be a short expected behaviour description. It's not meant to say "you can't complain about being treated unfairly". So how?