Most of us just want to fit in, and believe what everybody believes.
Coming to your beliefs this way is not actually intelligent. We don’t do it consciously. It’s just tribalism or herding instinct or whatever.
So if everybody agrees with you then that’s a pretty good sign that you are wrong.
You make it sound quite linear. There are more than 2 ends so there isn’t “that other end”. Your social group might not see birds as dinosaurs but that doesn’t make them governmental drones either
Then replace “wrong” with “arrived at in a nonreasonable way”.