So again.  You're in charge, you tell them to stay at sea. So now you have a ship where the whole crew is infected - which WOULD have happened, no way around it. So, what next?  You've got a ship full of thousands of covid cases.  What are you going to do with that? Keep in mind, how you answer that will either validate your opinion or show you to be the jackass that I think you are. Go for it.  We're all waiting.