Death is not the only negative outcome from Covid infection. When you consider the literature on Covid causing grey matter loss, prion disease, chronic vasculitis, cardiac disease, autoimmune disease, etc, you could argue death is actually one of the preferred outcomes.

Immunity isn’t an on/off switch and the virus is mutating to escape immune detection. It seems like you do not have a solid grasp on the kinetics of vaccine and viral immunity, is there a question I can answer for you or would you like some resources that might help improve your comprehension?