You start out implying that China _isn't_ diverse, an dthen seem to argue that the US's problem is that we're more diverse. But you got it right the first time:

You start out implying that China _isn't_ diverse, an dthen seem to argue that the US's problem is that we're more diverse. But you got it right the first time: China, especially in terms of leadership, doesn't listen to a bunch of diverse groups. They centrally control it without much concern for the whining of the luggage industry, or the furniture industry, or the cotton farmers. In the US, we listen to special interests because 1. we listen to those who talk and 2. special interests are very interested in a small thing that the general public doesn't care about. A very small luggage industry can demand absurd luggage protectionism because people in that industry care a lot, and people outside of it are barely even aware that it's a thing. I won't change my vote based on whether you put massive tariffs on foreign-made suitcases, but people whose jobs depend on it will. China avoids this by not caring about what people say.