Your suggestion of a baseline unvaccinated value is worthless in this context, I think my analogy makes that clear.
If you were comparing two different vaccines for the same virus, and one had an initial massive increase in antibody levels that then fell off, and the other just showed an increase with no falloff, that would be a meaningful comparison.
Nobody is comparing two different vaccines here. The original statement is about vaccinations as a whole, in which case the only relevant baseline is the one without vaccines.
Your suggestion of a baseline unvaccinated value is worthless in this context, I think my analogy makes that clear.
If you were comparing two different vaccines for the same virus, and one had an initial massive increase in antibody levels that then fell off, and the other just showed an increase with no falloff, that would be a meaningful comparison.
Nobody is comparing two different vaccines here. The original statement is about vaccinations as a whole, in which case the only relevant baseline is the one without vaccines.