Cringe. Cringe. Cringe. Cringed some more. All the way to Reason 40. And I have had a couple plus a dozen flung my way. But I あm from another planet, so I took them as a given and have internalized them. But on THIS planet, do people actually say that to each other?!? (Wow…dunno if I should be amazed or disappointed.) I think most if not all of the things you listed that partners should never say to each other (if they want to avoid a shin kicked in, a stinging slap on the face, an upper cut, a bloody nose, or worse — a visit from their lawyers) can be compressed into one sentence:

Don’t be disrespectful.

I think they teach that in kindergarten (on Earth).

To elaborate a sentence or two further, nobody has any right or privilege to look down on anyone and judge their self worth. We have a justice system that takes care of that for crimes people commit. We don’t need society to be amateur prosecutors either. On my planet, we weren’t careful about that and made social media platforms legitimate courtrooms. Many of us escaped that world, traveled through wormholes across galaxies — even the ones your cute JW telescope missed — and dodged space pirates to get here. I don’t want to see the same thing happening here. If I have to escape again, I’ll miss the sushi so bad.