As far as we can tell from archaeology, homo sapiens species started in Africa. Some of them migrated into Europe where they interbred with and ultimately displaced neanderthals. Others migrated into Asia where they interbred with and ultimately displaced denisovans. From these early migrations the entire world was populated with homo sapiens. And everywhere there were tribes of people competing for resources.

So this whole colonizer narrative is complete bullshit as no one alive today was a colonist. And the narrative is especially stupid coming from people that don't believe in borders.