The only response against anti-vaxxers is, if enough people don't get a certain vaccine, and then they get sick from the "disease" in question, their weakened state might cause them to get/start and epidemic of other diseases that are not protected by the vaccines available. I mean, if the vaccine works, then you are protected no matter how many other people get sick. The thing we are finding out is that vaccines actually wreck immune system strength of the "imbibers," so that they are the ones who are causing the epidemics. They might be protected from one or two disease, but vaccines weaken them so that they are susceptible to all kinds of other diseases.