If the US was stolen, then the Native American tribes were also stealing it from previous occupants. Heck, there are tribes in the southwest which only got to the southwest by conquering other Native American tribes after Europeans were already roaming around here.
So, it's hard to really feel sorry for them, especially because Europeans put the land to much more productive use per acre than Native Americans did.
No, because it was par for the course at that point in history and the people who were genocided were themselves genociding other people simultaneously, and only came to live on the given land because they enslaved, pillaged, raped, and killed the previous native americans who were living on the land.
So, it's hard to really feel sorry for them, especially because Europeans put the land to much more productive use per acre than Native Americans did.