And the Chinese empires collapsed and were reformed as different states ruled by different groups across different regions a dozen times. It's a nonsense point that posits some weird form of generational sin combined with ethno-nationalist irredentist rhetoric, unironically the same kind of thought that lead Mussolini to claim the holdings of the Romans rightfully belonged to a new Italian Empire.

Or Israel to right to kill any Muslims in Palestine for that matter, paying no mind to the fact that they're the actual descendants of Judea.