Curious feature humans have got - gather enough idiots in one spot, they'll talk to one another and convince each other that lies they like are true and facts they don't are not. And the wonders of technology mean millions of like-minded fools can gather easily and maximise the spread of proven lies so we can all read them and nod and agree:

Fuck proof, decades of empirical evidence, fuck science, truth and history, logic and common sense, so-called experts, who gives a fuck about facts? You want your kids to die, that's fine with me. Who cares? i'm anti-anti vax.

Cos there's a reasonable probability you're gonna impart your stupidity and push all your perverse medical flat-earth views into the heads of your unlucky progeny

So would it really be the worst turn of events if they're offed by what you refuse to protect them against? The world gets a bit less stupid and subtracts new recruits from your anti-sicence cult. Fuck you. I'm anti-anti vax.