Do we have a tin foil hat here?
Back in the day, people who were vaccinated, chose it because there was evidence that yes, it probably would protect them. Probably; no 100% guarantee ever. However most found it a risk they preferred over the alternative, which was getting sick, quarantines, and maybe losing their possessions too.
See the link at #93. And that’s not the only source for that info. Vaccines are marginally effective and often the source of illness. The immune system itself, alone, is the vastly more common healer of all disease.
Also, citing how many people were terrified into vaccinations has nothing to do with establishing the efficacy of those vaccinations.