Yeah, I see the antivax movement as largely a failure of politics and a symptom of the corrosive effects of social media.

People have lost faith in politicians after lies and corruption on mnah topics, and that is undermining all elements of democracy and trust in state intervention…

At the same time, Social Media allows idiots to connect with one another and organise there stupidity into movements. Social Media is largely driven by a desire to keep people on their apps to make money so the whole thing is designed to only show people the content they want and makes them happy, not anything that challenges their world view. They are largely not forums for free speech, instead they are commercial tools to manipulate people in to wasting time by feeding them what they want (including playing to their biases) to maximise advertising revenues.

Social media is the horrific consequence of unfetted capitalism - where all that matters is maximum profits, and the harm done to people and society as a whole is irrelevant.