Ehhh, those nutjobs are just proving the theory of natural selection. Let nature take them out of the gene pool for us. Meanwhile my vaccinated children while enjoy their childhoods complete with being covered in dirt, playing on public playgrounds, and generally being inquisitive children. Hell, two of them got a learning experience today when they saw an injured squirrel bite the crap out of my finger when I was trying to examine it's injuries to determine if they might be potentially fatal. Ended up relocating said squirrel to the bushes on the edge of the property to either become prey for something or make its way to safety.
Natural selection is fine. But those unvaccinated children become potential carriers of infectious disease that could infect a child who hasn't yet been vaccinated. The first MMR or MMRV vaccinations don't happen fo 12-15 months after birth.
If they don't, you have to deal with nutjobs not taking care of their children correctly and letting them die of preventable diseases. Just sayin', yo.