As always, thinking about flat Earthism is a terrible exercise for your brain. The fact that a few people exist who are utterly and obviously wrong about something, and that you’re not among them, should not encourage you to think that you’re probably right about any other issue.
Basically, I think an irrational tendency towards “both sides have a point” is a lot better than an irrational tendency towards “my side is right”, and that humans tend to err in the latter way about ten thousand times more often than they err in the former.
I like Scott Alexander’s essay on this subject, The Cowpox of Doubt: https://slatestarcodex.com/2014/04/15/the-cowpox-of-doubt/
Basically, I think an irrational tendency towards “both sides have a point” is a lot better than an irrational tendency towards “my side is right”, and that humans tend to err in the latter way about ten thousand times more often than they err in the former.