And that's why everyone needs to be vaccinated. If there's even one hold out then every single vaccinated person is at risk. For it to work there can't even be one unvaccinated.

And once every single person on the planet is vaccinated then what? CoViD will still be with us and people will still be dying from it. If indications are correct then they'll be dying in larger number than they are already, not to mention the side effects of the vax itself.

I think we already know what would happen though. The number of boosters required for people to qualify as vaccinated will continue to increase. And in this way there's will always be unvaccinated and the vaccinated will always be at risk from them. It's brilliant in its simplicity.