Did you ever sit quietly and look at your flow of thoughts. They don't always have truth, or meaning, or significance, sometimes they're just......well, thoughts. Confirmation bias, the interpretation of things according to ones belief system, that's everywhere and in everything, don't know how you really ever escape that. So easy to get carried away with it, you can use words like denial and rationalization to summarily dismiss everything the other party is saying. I think every group does that to some degree.