Earlier quoted context omitted.
It wasn't a "nation" though. It was an empire that could only be held together by force and oppression.
But isn't China the same? Tibet and Xinjiang are both nations with their own language and culture. I guess it wouldn’t be long until they became independent again if it weren’t for force and oppression.
Those regions might be politically important to China but demographically and economically (besides any potential natural resources) they hardly matter.
Han make up 91% of the population of China, in the USSR Russians were barely above 50%.
I mean China is a nation state that engages in some imperialism. The USSR was an empire first and foremost.