" there is no comparable pool of labour anywhere in the world " -> this is not fully true, as when wages in China started to rise, lots of labor offshoring moved to SE Asia (e.g. Vietnam) and there's still a lot of potential for the same to happen in various African countries.
You made a prediction that these places will never be comparable to China. What do you base this on? What prevents India and African countries from establishing special economic zones that are attractive to foreign investors?
