Thousands take to Hong Kong streets to protest new extradition laws
You could wonder: why does the mighty bejing government care about these little provinces that dabble with democracy? Actually, Hong Kong and Taiwan are very dangerous to the mainland government. They harbour elites who keep values of democracy and freedom. Those elites potentially could be put into power in order to oversee democratization of China. Not saying that they ever will, but it's certainly a danger for them.