Blacks were enslaved after being brought overseas against their will. Their labor was exploited by slave-owners. The native Americans were not enslaved, they were merely conquered, as happens regularly between nations. The purpose was to increase territory, which is a completely rational reason to push neighboring countries out. I'm not saying that there is no argument against the displacement of native Americans, I'm just saying that it was completely objective. The native Americans were very primitive people with an inferior culture which could not defend itself from the advanced European colonies. Blacks were not pushed out for their land, they were enslaved (they had no option to leave). It is objectively justifiable what Europeans did to native American tribes.
They basically lost control over their homeland and in numbers they were reduced to a fraction of what they were in 1492. Even today they haven't fully recovered from this. Also, they were largely forced to assimilate to the culture of the Western colonists and their descendants and today their native cultures only continue to exist artificially.
If we are talking about the era of american history, then it's definitely Native Americans. But throughout all of history, I would say Black people, just because not only were they enslaved by americans, but they were also enslaved by the british and the arabs.
The Natives had their land taken away, the Blacks were taken away from their land.
Ever since Europeans arrived in America, the natives were stolen from, enslaved, murdered, abused, and the list goes on. Black people were just enslaved and in some cases abused/murdered.
native people have lost whole tribes. then later cultures went missing and have never been found again. with the amount of people that were murdered it is safe to say that there was a American Holocaust.
Northern Natives have been wronged more than African Descendants. African descendants have no history; they can literally go back to Africa and adapt, while the Natives cannot. The land that is occupied is the only land that would have their history.