And after the Europeans arrived, they would sometimes sell their prisoner/slaves to the Europeans.
And some native Americans would become owners of African slaves.
The first workers imported were indentured servants from Europe and some of the first Africans would come as indentured servants and after they worked off their debt and gained their freedom some would become slave owners.
Bother reading a few histories of the Mayans and the Inca written before historical revisionism got popular and then we will talk.