I'm saying that due to "good hands" being an industry requirement for 1B, we can't fairly make the opposite comp of Youk/Millar. Millar is a statue. His stone-handed alter ego doesn't exist. Thus, while that comp is a good one, it does nothing to refute my original point that hands take precedence over range as the desirable skillset for a 1B.
No, I'm not saying that because all 1B have decent hands that Carter will. However, his comp in F% you mentioned was 3x worse than some of the bottom of the qualified AL list. So, he is seriously deficient in the one area where fielders tend to improve with time. Yet, it's unlikely he'll improve, according to you.
Perhaps you are right, and he never will be able to field well enough to earn a starting role. That said, given his deficiency and trends in the progression/regression of skills associated with age, it's certainly not as black and white as you make it.
EDIT: I think we are talking apples and oranges here. I've not said the differentiation point between MLB quality 1B is their ability to handle the ball. I've said that good hands take precedence over good range at that position. In order to validate that, we'd need to make those skills mutually exclusive, and then compare to someone who is good at both, like Youk. Millar fits one of the mutually exclusive skillset combinations (good hands, bad feet). The other, due to industry demand, does not exist in major league baseball. That industry demand in effect validates my point to some degree with the caveat that the industry still utilizes small ball inefficiently in some places. In other words, just because baseball agrees with me, it doesn't make me right.