The booster treadmill is so transparently retarded. Our governments know they can't declare the vaxxed to be unvaxxed the moment "protection starts to wane" because then a critical mass of people will wake up and reject the boosters. So governments wait until a critical mass of people have been boosted, and only then do they declare the unboosted to be unvaxxed. The label is completely arbitrary with respect to medical science. It is 100% determined by political calculus.