At some point life returns to normal.
Come on. Getting vaccinated has more than enough utility for you and for others to make it a good choice on either principle alone.
Wearing a helmet while driving a car, however, has a pretty good chance of reduxing injuries and fatalities (probably even better than wearing a helmet when riding a bike on a seperated bike path.)
I don't think this is really a question of people analyzing the trade-offs. This how to do with how the risks and the activity are percieved, people are generally really at accurately assessing such risks.
Brushing your teeth doesnt guarantee you will have no cavities.
Radiation doesnt guarantee you will be cancer free.
At no point did the vaccine promise full immunity.
But in my callousness I would simply illegalize treating people that are anti-vaccine.
What about not treating lung cancer in smokers? Or diabetes in morbidly obese?