You need to write the book. Or at least a series of articles. They could be stand alone threads.
Post-modernism (or whatever the phrase de jour is) boils down to this - there is no Objective Reality, Objective Truth that exists apart from any human being’s beliefs or lack of beliefs.
But, since humans by inherent nature do accept truth in some fashion (usually accepting as truth whatever their minds believe at any given point in time), they think as “true” whatever they believe, and “untrue” whatever the Other Guys believe.
Truth and Belief are mixed up and thought of as the same, as long as it’s My Belief. The Other Guys’ Beliefs are by definition Untruth. Why are Other Guys’ Beliefs not Truth? Because “I” - the judge of Truth - hold different beliefs! (right now anyway, since beliefs always change to some degree.)
So the funny thing is that these people who spout such nonsense as “everyone has their own truth” or that there is no actual Eternal or Objective Reality are living contradictions, their very beliefs and actions and speech contradict themselves at every step. They say everyone can have their own truth, but think and say that “their” truth is really the Real one, and the Other Guys’ truth is wrong. Internal hypocrisy and positions that nullify each other are SOP. It’s like a person who thinks it can be day and night at the same time.
If humans do not accept Objective Truth and Reality that exists independently of anyones’ beliefs or lack of beliefs, then further down the rabbit hole of insanity we will go.
“You need to write the book. Or at least a series of articles. They could be stand alone threads.”
Thank you. Believe me, if the powers that be ever asked, I’d love to.