When an authority suppresses a minority, the minority builds resentment. If there is no outlet, the resentment grows into rebellion. If the authority suppresses the dissent it doesn't go away. It festers. Eventually all of the minorities in China will all be unhappy and ready for a full revolt. If authority tightens it's grip, the country will explode. Angry upset minorities rebelling simultaneously across all of China would be more than the authority can suppress. It will become like Syria. If China does not change course, Syria is it's future.