And, KEEP YOUR PANTS ON: The Indians were immigrants too, Siberian hunter groups. Google it. It's a DNA fact.
No, it didn't work out so well for the Indians...also misnamed as Columbus DIDN'T reach India.
Another fact: The American Indians also had slavery, from the tribes they fought with, over the usual, land, power...and slaves.
They had white slaves too. There is someone here on FR who wrote about his g.g.g.grandmother who was captured by Indians as a child and was enslaved.