Back in the day, my family had lots of cattle and ranch hands killed and hunted by non-Indigenous-to-the-region Indians that would operate as rustlers and poachers, not because they were "thrown off their lands," but because they were common theives and stealing was easier than ranching.
They could start there.
Then the criminals involved should be making the apologies, not an entire race of people.
Otherwise, what race should be apologizing for Jesse James or Al Capone?