1) A view which is very common among mainlanders is that “without China’s economic support, Hong Kong would have been dead long ago.” But many Hong Kongers now think that the “mainland invasion” has done more harm than good to Hong Kong.
2) There is also a fear of the erosion of traditional Hong Kong values like the rule of law.
3) Hong Kong has one of the highest levels of income inequality in the world.
4) Hong Kong people could realize the fact that they, like most mainlanders, live in an unjust political system under which the rich and the powerful collude. They share the same destiny, that is, to end this injustice.