Historically, China has considered opposition as a form of crime of lese-majeste. The circumstances surrounding the Hong Kong recent opposition might be worth a better treatment than refusing a dialogue with the demonstrators.
Whether on account of poor leadership, or the curse of being blessed with extraordinary energy resources, modern Russia has for now lost the only power game that really counts today: the game of globalization.
In the absence of any realistic alternative to replace the supremacy of the dollar, it is likely to remain the dominant global currency for many years to come. No other currency is more widely accepted or used.