If we indirectly reduce the population with vaccines, how do we know we will be left with smarter, more responsible people? Wont the super smarty vaccinated people be having less kids than the super stupid un-vaxxed guys like me because they will feel less likely to die?
Yes. But I should think the eventual result would be obvious to you. The point of vaccines--proved over several centuries by now--is to prevent the diseases they target. The people who refuse to take them, along with their progeny, endanger themselves.