I would like to point out that, in practice, we have eradicated Polio, and Smallpox, both of which are terrifying diseases. Also, thanks to vaccination of the a

I would like to point out that, in practice, we have eradicated Polio, and Smallpox, both of which are terrifying diseases. Also, thanks to vaccination of the adult populace you never hear about babies dying from Pertussis. There are other diseases that are similarly rare now but that used to kill or deform people before vaccinations became a part of public health policy. So there are some good reasons why I think you're right.