There can be no debate allowed
This is why we have the Ministry of Truth - someone, not sure who, appointed them to silence anything that differs from the facts that they claim are accurate
I nominate them to be on the highest tier of wind chimes put on public display; so the birds can feast without being disturbed
But what we are seeing here is far beyond groupthink, although I suspect that the same people pointing the finger at Bush, Cheney, Rumsfeld, et alia for their efforts in shutting down dissent some twenty years ago don't see the similarities in the behavior of today's shot proponents. And if or when the effects of this shot turn out for the worst, the powers to be that promoted it are going to be damned in the court of public opinion for the efforts they engaged in to promote it and to shut down any opinion that raised even the smallest question about its actual effects.