I meant that Apple can start requiring absolutely anything as a condition of being allowed on the app store. They can totally say "your app promotes hate speech

I meant that Apple can start requiring absolutely anything as a condition of being allowed on the app store. They can totally say "your app promotes hate speech, even if on other platforms, and so we are banning you from app store". They will just put an appropriate clause in their rules, if it doesn't exist already. That's it, you're breaking their rules.