I've read enough flat Earth stuff to safely say I can reject it on its merits. Anti vax got started as a response to a series of industrial accidents that weren't handled right by the business side, but industrial accidents are rare so I think that's not sufficient reason to abandon vaccines entirely.

The only people you hear complain about bubbles are the people that are marginalized, if you agree with the bubble you will love every second of it and hate everyone outside. So, watch out before you speak in support of your bubble, that probably just means you are in the center.