I get where you're coming from, but bloodletting wasn't based on randomised controlled trials, and the science on vaccines is as clear as it's going to get. The issue for me here is protection of children, as happens when kids are removed from abusive parents. "Sure, a couple of people end up not vaccinating their kids," feels a bit glib, because measles can be fatal. We draw the line elsewhere - racism, homophobia, libel. The arguments against this here feel like they amount to special pleading for social media, whereas in the rest of society certain speech is, rightly in my view, policed.

Like some of the discussions around GDPR, it feels like there may be a cultural difference between the USA and EU in terms of how much government is trusted, and I wonder if that's a large part of the disagreements in these comments. I'm in the UK and trust the government not to overreach (although in the light of Brexit that trust is wearing very thin), and even if it did our independent judiciary would reign it in, as it has done many times in the past.