I assume you mean is -not- protected.
> If you think Parler does a poor job of moderation and stuff being said on there offends you, guess what, don't download the app and don't use it.
And if Apple thinks they're doing a poor job, don't post it in their app store? Or should Apple be constrained somehow and forced to carry it?
If Apple thinks the violent content on Parler is out of control and needs moderation, isn't that Apple's own decision? If you don't like Apple's choice of what content to curate in their app store, "then guess what, don't buy an Apple phone and use the app store"? OR should you have more recourse beyond this?