If all western countries would not trade with China, that would certainly reflect negatively on their economy; earning foreign exchange is key to any developing

If all western countries would not trade with China, that would certainly reflect negatively on their economy; earning foreign exchange is key to any developing country. I think focusing on this aspect is counterproductuve, however. The chinese made money becaused they produced goods at a lower cost (and, increasingly, more effeciently). A lot (most?) of China's growth is on the account of its exports. But I don't think that implies that it is due to what the west "allowed." Selling a product alone is what makes one deserve the reward. So I don't see how the first clause relates to the second clause of your first sentence.