US tech may lag on the important stuff... but it's also pretty meh in the shitty ones too
No, China is not imperialist, nor "expansionist imperialist." This is baseless. The west is actively imperialist. The west uses financial domination of the global south, including dollar hegemony, IP monopoly, unequal exchange, and more to extract as much surplus from the global south as possible. China does not, and the reason it does not is because it isn't dominated by private finance capital. Private finance capital is the main driver of imperialism as a stage in capitalism, and because you have not looked into the causes of imperialism and neocolonialism and have not looked at the numbers, you assume that the socialists must be guilty as well:
I've read a lot about Taiwan, Tibet, Xinjiang, and while I still need to read on Inner Mongolia, I don't see that changing my assertion that China is not expansionist. I recommend you read Xinjiang: A Resource and Report Compilation, Taiwan: An Anti-Imperialist Resource, Hong Kong Reading List, and Friendly Feudalism: The Tibet Myth. All of these are western sources, so you should have no problems with believing this to simply be "CPC propaganda."
China has comprehensive minority protections and rights. Your evidence thus far seems to be that China is secretly evil because it has affirmative action, which is nonsense of course and demands more than just blanket statements with no backing. You're free to respond to whoever you want, but when you lie and slander to other people behind their backs, certainly you can see why that would be a pretty low thing to do, no?