Scientists and the government were also unaware of vaccine side effects. These vaccine injuries and deaths were also unintentional.

"Living one's normal life" seems to unreasonably privilege the status quo. I am sure many drunk drivers also felt they were simply living their normal lives, before drunk driving was illegal. The definition of "normal life" changed because it needed to. When there's a global pandemic on, it needs to include vaccinations.

"Herd immunity is too multivariate to measure" seems like a very strong claim. Do you have a source for that?