To use a marriage analogy, autonomy (bounded) is consensual separation where the injured party has initiative and control over their actions. Apartheid would be the husband restricting the wife to a certain area of the house and beating her everyday.

Autonomy is the best way to preserve culture. A tiny minority living among people who do not share their values will eventually lose any connection to their past due to assimilation unless they adopt extreme orthodoxy like the Amish/Mennonites/Haredim (who too have to form ghettos to achieve their goals).