Eradication of either of your examples didn’t require a police state. I’d rather live with an 0.000001% higher risk of death than live in a fucking surveillance state.
America: You’re going to stop me at an internal “border” checkpoint, and as a US citizen ask me my detailed plans for the next two weeks? Go FUCK yourself. You want to tie my travels in my own fucking country to an identity? Same. Fuck yourself.
The risk of contracting polio was also quite high before the vaccine. Unlike the risk of being exposed to a terrorist attack on US soil, which has essentially been zero for the last century.