It's their country (China), it's their (Chinese) problem to solve. No amount of faux western hand-wringing will change policy in China.

When the Chinese people rise up and oppose their Government is when change will happen. That will be a messy situation for sure, but so has been any revolution where the people decided that they would be their own masters. Remember, right next to Canada sits the USA, a country born of violent revolution only a little more than 200 years ago.