Honestly I think that this is a bit of straw man argument and detracts from the larger argument, society depends on you to vaccinate, and you do put your kids at risk because the risks of these diseases are real. I doubt there are hardly any anti-vaxxers out there who are thinking that autism is worse then death. They are thinking the chances of getting measles is very small, and the chance of death is even infinitesimal, therefore why subject your kid to something with scary toxins and ingredients because autism/asthma/food allergies from vaccines is the way more likely outcome. The action is based out of fear and ignorance on the issue, and the way to counter that is through repetition of the facts (maybe coupled with a little bit of public shaming). I think all this piece accomplishes is getting anti-vaxxers to reaffirm their position in their own heads because it's easily countered with a simple "well that's not what I think at all". They just defeated your argument for vaccinations, and then feel justified in going about their day and keeping their original opinion.