Well, capitalism certainly didn't fuck the native Americans, colonialism did.
I think you're all over the place and so is
@jamalrob and it's common to see when talking about capitalism.
Wealth inequality is older than history, resources were never distributed fairly in any society. The "theft" is a part of life, it's older than capitalism. Communism recognises the imbalance but does not give a satisfactory answer, capitalism ignores the imbalance and operates on it. However, you cannot blame capitalism for not solving the problem of power and how power works.
The more resources someone has, the more easily they acquire even more. The less someone has, the more difficult it is to acquire more.
Individuals ultimately act out their human nature across time. Through the preexisting conventions of power, technology, economy and so on. It was inevitable that people with power would use their power against the weak, it seems so pointless to have opinions about it.
Should inequity be redressed in modernity? Yeah, I believe the natural conclusion of capitalism is wealth redistribution through things like a UBI. If this doesn't happen, the alternatives could indeed be grim.
Land inequality is not an issue of capitalism, it's difficult to address, many countries in South America and Africa are totally ruined by land inequality due to colonialism. Meanwhile, in Singapore, the land is mostly owned by the government. The solution Singapore used was rather capitalist in nature, forced sales of land to the government.