Earlier quoted context omitted.
You augment your memory with Google searches and your running speed with cars, why not augment your natural immune system with vaccines.
Well, I am about to get vaccinated with astrazeneca in half an hour ... but my counter argument would be: relying on vaccination and sterilisation too much, causes the immune system to be weak, too. Immune system needs practice, too.
I think you fundamentally misunderstand the mechanism of vaccination.