The “One Country, Two Systems” was brokered by the United Kingdom and the People’s Republic of China. In no way, should the United States government be enforcing this policy upon China. I sympathize with the Hong Kong protestors and understand China’s single party system beginning to seep into Hong Kong, but if the population of Hong Kong wanted its political freedom, then the United Kingdom is responsible for enforcing this policy.
The United States must not interfere unless asked to by the United Kingdom. It sucks, but this is not our policy to enforce.