I agree with collateral damage. It's most interesting to me when people carry around a "wrong" belief despite social penalties and damage to their own lives. There's no (or very little) social penalty for being Democratic around me, but to be a republican is very bad socially. Yet people carry it, is it the idea of being right, enjoying controversy or some sort of screening mechanism I wonder?
Anti vaxxers don't seem to realistically cause terrible issues in the amounts of them (currently). People who believe HAES seems way more socially accepted yet has a larger impact on the healthcare system, consumer products and food offerings, yet there's way less dislike of them than anti vaxxers. Why is that?
There is no collateral damage if half the planet believes the world is flat. You don't need to be "right" with these people.
Anti-vaxxers are a different story. Their "wrong" directly infringes on my liberty and, thus, yes, being "right" is extremely important.