I don't place Flat-Earthers on the same level as Anti-Vaxxers. First off, I think most flat-earthers aren't sincere, they just love getting attention and a rise out of people. But for those that are sincere, their belief in a flat earth doesn't impact me or society. Someone who believes the earth is flat isn't an ideological threat. So I agree, we just need to calm down and let these loons be.