Your strong opinions in this thread are based on assumptions that aren't really grounded in any science that I've seen. Where is the evidence that T-cell immunity has decreased materially in those that only received the first round of shots or first round + a booster and/or a Covid infection? What I have read (and granted I don't follow it near as closely as I used to) is that the expectation is that in healthy people, you remain protected from severe disease and that T cell immunity is expected to last a long time. Your floating antibodies may be lower, and may be more susceptible to an infection, but I haven't seen any data that indicates, or really even speculates, that annual covid vaccines materially move the needle from a severe risk perspective in healthy low risk individuals.
I think comparing the Covid and flu vaccine, both from a design and intent perspective, and a cost/benefit perspective, is apples and oranges.