Why do you think they have not removed Plebstr yet? What's the difference?
Once Apple removes Damus from their App Store, you'll still be able to use the app if you have it installed. New users won't be able to install the app. Current users won't get new updates.
But remember, Damus is just an app. Damus is not Nostr. And Damus users have been down this path beforehand. Damus users in China experienced exactly this. And do you know what? THEY'RE STILL HERE.
I hope that Apple and nostr:npub1xtscya34g58tk0z605fvr788k263gsu6cy9x0mhnm87echrgufzsevkk5s can come to a workable solution. Until that day comes, you have plenty of other choices.
You can use a web client with Nostore to keep your private key safe or you can install one of the other Nostr clients from the app store such as Plebstr.
🤙🏻
Discussion
Im sure they will soon enough
What’s the plan? 
Talked with the head of a school, all US manufactured head sets are banned in Dutch schools or will be. The ones that record eyes are not compliant with EU privacy regulation… let’s see what’s going to happen. It looks like we’re moving into a multipolar direction.
They just went for the biggest one first.
Plebest doesn't have a large user base and isn't making any noise, yet. If people put Plebest under Apple's radar, it will happen.
Canary in the coal mine.
They will soon, just like Google Play will in time. They are just making an example of the largest client for IOS and flexing their muscles.