Here and here.
Why doesn't this happen in the U.S.? Why are there no Navajo insurrections or Aleutian revolts? Is it because we ruthlessly crush them? Or is it because the U.S. continues to improve and expand its freedoms based on the consent of the governed, freedom of speech, property ownership and transparency? As an added ironic observation, why is it that central authoritarian states, even when they're originally predicated on a supposedly universalist social theory like communism, inevitably degenerate to nationalism - where one group is more equal than the others (Uighurs and Tibetans especially)?
China has awakened as a great power, and ultimately it's up to all the people of China - including the Han - to demand the basic freedoms that the successful governments of the world deliver. A peaceful and prosperous twenty-first century depends on it.