The pity is that we can clearly see, from veterinary diseases like Marek's disease, that 'leaky' vaccines cause great harm - even before we consider phenomena like antibody dependent enhancement and original antigenic sin. But politicians don't want to know; the media is bought; and scientific establishments are ideologically compromised.
In a few years people will look back at this time as a period of exceptional hubris, orders of magnitude worse than the Thalidomide scandal, and scream "why didn't you warn us?"
Sadly, we did.