I have always - always - said that he is and will be a valuable player and an important contributor. If that is 85% wrong, then you must think he is either no good or is the next best thing to Carmelo Anthony, in which case you are the one who is wrong.
CJ is a very good college player, but unlike you I am not overly invested in him becoming "great," so I can honestly evaluate his talents as I see them. I don't need to pretend he is better than he is (which is pretty good) in order to get some self-validation, and I don't care if the fanboy crowd gets all upset when I point out that the emperor is not wearing all of his clothes.