Not focusing on the lowest common denominator, thus pulling the rest of society down, is not the same as enslaving people.

you are badly over-generalizing; there was always strenuous conflict over slaves and slave labor. Specifically why it was "states" legally.

What is new to me is the extent to which indentured servitude was practiced in Central Asia; no doubt people brought their histories with them to the USA.

Parts of it were and they were utterly destroyed 160 years ago.