Countries who have successfully gained independence have often sacrificed a lot of blood for it. And built strong armed forces to back that independence up with.

Whatever we may think is morally right, HK does not seem to be putting together that hard resistance, nor is it building up its own armed forces to declare and maintain independence with. China thinks HK is legally theirs and nothing we say or do will change their position over it.

That's why I don't see these protests achieving anything.