It just came to me that an unhealthy J can view themselves as their P counter type. They have this image of who they think they are and they believe it to an extent that they try to be someone they are not.
One thing that drove this was the folly of thinking men thread. How a type can believe themselves to be objective when they are really subjective. They will then always feel inferior because their pride and ego keeps getting hurt because they are truly subjective. What happens is they block their perception to objective data and in the process help them believe they are objective people furthering the idea that they are objective. Hence why J types have perception as either tertiary and inferior.
ok, to try and get discussion I will stop before digging to much deeper.