>>212870767They can't integrate. They don't belong here. There is a massive gap between the genetic composition of the settlers/immigrants and the slaves.
Even if we ignore the massive racial gap, think about the type of person.
Settler/immigrant: ambitious, hardworking, enterprising mindset
Slave: lazy, dull, entitled
They have always stuck out like a sore thumb because they don't belong here in any way, they were artificially imported in. Even illegal immigrants now come here because they WANT to work and build.