and what do you mean by "past peoples"?
IanI ain't "past" as yet. The Tasmanians might be but IanI still deh here.
Injustices ain't "past" either.
I am Welsh ('white', Celtic Welsh) on my dad's side. I am quite aware of the past and present injustices committed by the English ruling classes against Celtic people (and against English working people).
My Welsh ancestors coughed out their lives with black lung from working in the coal mines for pennies, and were beaten in school for speaking their language.
Whilst terrible, these injustices do not compare with the horrors that have been and are visited on the black brown and red peoples by the international system of white supremacy.
Pirate Morgan was a welshman who would have been treated as a second class citizen in Britain. He took to the high seas to make his fortune. He used to cut open the bellies of pregnant African sisters after making bets as to whether it was a boy or a girl.
I am not saying the welsh people bear some sort of collective guilt for this. There were and are more hardworking welsh people who never oppressed anyone (except maybe their wives and kids- the only people they had power over). The point is that white supremacy system offers white people, including poor oppressed white people, a relatively higher position of power than Black people and other 'people of color' as the current catchphrase goes. And white people collectively, including poor white people, have and do use this position against people of color. Anytime you have a hierarchical class/caste/race system those at the top of it will be corrupted by being in that position and will become oppressors in some way or other even if they themselves may be oppressed in other ways by other people.
Black people go through everything poor whites go through and more, and have to deal with the white supremacsit system on top of that.
We might be in the same sinking boat as poor white people but we are not on the same deck and we do not all have equal access to life rafts.