I don’t know. The research I can find shows natural immunity is effective, but we don’t know the half life of it.
It also shows vaccination is effective, but we don’t know the half life of it.
So the CDCs stance is to vaccinate even if you have a natural immunity, because the vaccine _might_ do better. But that doesn’t seem to naturally follow.
It wouldn’t bother me if companies weren’t considering forcing you to vaccinate to keep your job, even if you have a natural immunity. These stances have real world consequences. You are asking people to trigger their immune system, something complex and not fully understood. Companies are taking these recommendations and using them as policy, forcing the recommendations as corporate laws. If you are going to force this on people, the way you are communicating isn’t how you do it.