OnTheWayOut,
"All I can say is that Perry wants to not "continuously weave concepts and beliefs into [his] identity" but wants to only find things that agree with his rigid concepts and beliefs that he has already woven."
That is known as confirmation bias.
Perry actually strengthens his beliefs by coming here and watch us try to reason with him. He is a psychic vampire who's feeding off on our energy when we try to explain things to him. The more we explain the more it strengthens his delusions.