I see what you mean; it's all very intuitive. I can see plenty of reason for just about ANYONE, regardless of type or perscribed habvior, to doubt something so widely accepted as, say, Freudian psychology. There really is no empirical evidence (psychologists would supposedly cooperate with brain chemists to produce such a thing) that confirms anything about human behavioral tendencies as far as classifying them goes; it's all statistically and observationally based.