This is the outcome from 70 years of idological brainwashing the entire population that "the market will always make the best decisions" and any attempt to regulate is a form of communism that will destroy the country and probably make you sterile to boot.
Toss in some conspiracy mongers and you have the anti-vax industry.
And note it is an industry largely run by a deregistered doctor at a massive private profit for himself.
And of course because of the heard immunity effect, for the first while it appears that the criminals are telling the truth.
No one that is not vaccinated gets any of the vaccinated diseases so the criminal must know better and we have all been conned.
Then "x" years down the track, when Mr No-Vax is sitting on a personal fortune of $ 500,000,000,000 from all of his faithfull diciples , the herd immunity is finally diminished to the point that the diseases run rampant .
You are left with grandkids that are basically vegetables on 2 legs that send your kids & you bankrupt looking after while he is on a tropical island sipping coctails .
In fact your own Bertrand Russell coined it a long time ado
1) Most people would sooner die than think; in fact, they do so.
2)The fundamental cause of the trouble is that in the modern world the stupid are cocksure while the intelligent are full of doubt.
3)Collective fear stimulates herd instinct, and tends to produce ferocity toward those who are not regarded as members of the herd.