You seem qualified to offer a valuable opinion on something I’ve been wondering about;

Is a person’s long term natural immunity against covid changed for better or worse, in the case that an initial vaccine is administered, but for whatever reason, not maintained by appropriate boosters in the future?

In other words, given the crutch to bolster the immune system against initial attack, could it actually be weaker against future attack with the crutch removed, than it might have been without ever having had the crutch?