* What happens to me if I publicly criticise a policy my government has implimented? Nothing! Free people can criticise their own government. Without freedom of speech, people simply aren't free. We in the west are free at the moment, but there are people in the west who are trying to destroy freedom of speech, namely radical Muslims, CPC supporters, and the hard left. For an example of how the left is trying to stop views they disagree with from being expressed in public see here. For how they are using conservative politicians to their advantage, see here.
The Communist Party of China (CPC) wisely adopted capitalism. The country would have collapsed if they did not. George Reisman explained why communism, as an economic system, cannot work. See here.
What about freedom of speech?
The CPC will not allow ethnic Chinese (whether in China or oversees) to publicly criticise any of its policies or actions (for examples see Silent Invasion by Clive Hamilton).*
Now I understand that it would not be wise for the CPC to introduce freedom of speech overnight (otherwise they risk destabilising the country and being imprisoned for crimes committed against their own people).
But perhaps they could attempt to introduce freedom of speech one issue at a time. Because of tensions in Northwest China, the following might be a good place to begin. The Third Choice.