Cool, there are at least five different 'that is the whole point' takes on what the Chinese room means in this discussion. Also, I disagree with your take on it, that's not at all the point.
Well, unless with dualism you just mean that there are two, you are simply mistaken. Just because my car has an inside and an outside, and I cannot determine the state of its gearbox from the outside w/o the car telling me, does not mean that this implies a ghost in the machine. Far from it.