Just because you see somebody's behavior as obviously wrong doesn't mean it is. Whenever I see this kind of arrogance I remember a story about westerners discov

Just because you see somebody's behavior as obviously wrong doesn't mean it is. Whenever I see this kind of arrogance I remember a story about westerners discovering some indigenous tribe in the jungle and seeing how they do a magic ritual to tell them the best place to go hunting. The ritual seemed to be just random and pointless but the tribesmen believed it gave them useful knowledge. Turns out, the value of it was exactly in the randomness which helped to prevent prey from learning their routines or over-using some areas. Many other "obviously" pointless beliefs are valuable simply for being beliefs, not for accurately reflecting the real world like some non-human information processing machine. If you believe that bleach injection is really about a practical decision to choose the best medicine and making the wrong choice due to misinformation, then you're lost in your own bigotry.