What It Takes to be an Anti-Vaxxer (or Climate Denier, Flat-Earther, etc.)

The author of the meme here posits that narcissism is required to be an anti-vaxxer, because without it, people would simply listen to the scientists who have spent their lives studying the subject.

True.  But the same could be said about any area of inquiry.  The reason I don’t believe that humans and dinosaurs were here on Earth at the same time is not that I’ve studied this subject personally; it’s that I’m content to listen to the paleontologists.