The Africans replaced them because, indentured servants worked for a certain amount of time, while the Africans would have no right to do any other thing than work.
The reason why we have evidence of hunter-gatherers (h-g) and their lifeways are: <span>Archeology and paleobiology
Through paleobiology, we managed to study several existing fossils, which became the evidence of hunter-gatherers' existence and through Archeology, we could know their lifestyle from the tools and buildings that they left.</span>
It means "We'll raise a generation, selflessly loyal to communism."
First one is the elite one.