Those were capitalist societies, who wanted to enhance societal wealth. Communist China's intentions are markedly more inimical, and adversarial...expressly wishing to displace the U.S. as the pre-eminent global power. The talk about the U.S. "Hegemon" is merely envious projection of their own designs.
So you think they can keep a cap on dissent forever? That they can continue to disappoint the agrairian majority that wants a bigger piece of the pie, and keep the Tianamen activists at bay forever?
Where do you think their capitalist seed money comes from? It comes from expatriate Chinese. Its extremely premature to be suggesting the Chinese are willing to go to War(Cold or otherwise) over Taiwan or a bigger Pacific presence or whatever, and scare off all those offshore Chinese. Very premature indeed.