In his “Hong Kong’s Power of the Powerless: Hong Kong’s Last Stand”, Kong Tsung-gan looked at the Indian independence struggle and the US civil rights movement in some detail. He found that both had advantages that the Hong Kong pro-democracy movement lacks:
Gandhi and Indians knew it was just a matter of time. They could outwait the Brits. At the end of the day, there were just so many more Indians than British administrators and resources that if the Indians refused to cooperate, British rule was unsustainable. The Indians had superior numbers on their side. Hong Kong obviously doesn’t. There are 7 million Hong Kong people, and 1 billion mainlanders (or, maybe more to the point, 86 million Chinese Communist Party members). These days, Hong Kong people feel almost inundated by the number of mainland visitors. The number of mainland immigrants per year is about 54,000. One cannot help but think that part of the CCP’s end game for Hong Kong involves the mainlandization of Hong Kong’s population, much as in Tibet and Xinjiang, a process very different from the type of immigration from the mainland to Hong Kong that occurred in the mid-twentieth century.