Why do you expect this, and do you think it's a reasonable expectation? Do you shrug off flu vaccines because they're only effective for a year or so? (I understand the difference between reduction in efficacy over time against a single strain vs against new variations)
> While I'm vaccinated, I have not signed up for an endless stream of "boosters" every 6 months or so. Probably I'll be declared "unvaccinated" with a straight face and excluded from society in the not-so-far future.
I don't understand this point of view at all. Do you only take the first pill in a course of antibiotics? Why wouldn't you follow the vaccine schedule that offers the best overall protection, and best reduction in total risk, that we're aware of and is available to you?