That gets pretty well ignored. In australia the British colonisers said the land was legally uninhabited and used that as a way to wipe out a lot of indigenous peoples and nations. We went from over 700 nations to now under 250 and frankly im suprised that many survived but i guess a lot are like Tasmania where there is nobody left as a full blooded indigenous, some have some indigenous blood but overall they were effectively wiped out and their languages an cultures erased with only a small token few left to try and pretend we weren't genocidal.

Meanwhile china legislates protections for indigenous minorities and the west portrays them as oppressing minorities.

Find me a school in xinjiang and I bet it teaches uygur language, find me one in australia and I'll bet it doesn't teach any indigenous language at all.