Best response to Herschel Walker's stupid comment on evolution:

[modrepub]

41. Only In Rare Occasions

Under your scenario maybe it's enough to remove the non believers from the gene pool, but not typically. The last worldwide pandemic was in 1918. Most childhood vaccinations occur before folks have a full understanding of what a vaccine is, unless their parents are one of those, and to be honest it takes a lot of presumption to ignore your doctor face to face or your school district et cetera.

Unless there's something that removes the fools immediately, they can just ignore the science with no repercussions and that false sense of security. You'd have to be in a combat situation, where mistakes are generally fatal, before you'd maybe be able to convince the nonbelievers it's in their best interest to follow the rules.