"Given her demographic problems, China only has a short window to project herself as a global power—including retaking Taiwan—and she will have to act on that during the next 20 years or so. Iran has a similar problem."
Greece is not basically Greek. Where is their modern-day Socrates?* Italy is not basically Roman. England is not basically English. China, however, is basically Chinese, give or take some Maoist anglicization. As long as they continue to be disinterested in expansionism, China will remain Chinese.
*(Strangled by his half-Moorish father long before anyone could accuse him of "corrupting the youth.")