That might be true for you, but that clearly isn't true for everyone. I know people in HK (mostly elderly) who are fine with China coming and taking over. They see security and wealth.
Most of those people in HK who are fine with it already have deep connections with the Mainland and want to maintain those. They are a small fraction of the population.
It's also fairly short-sighted and selfish thinking in my mind to sell the off the rights of the younger generation so they can keep their assets and businesses safe.
In the US we have been selling off our privacy and ability to affect public policy through our leaders for much the same reasons, ie short-term gains for the few. Difference is we gave it voluntarily.