Original sentence: White separatists oppose claims that it is a supremacist ideology, which is predicated on a single, supreme, sovereignty requiring subjugation of parts of the society to the will of other parts
Edited sentence: Since separatism is predicated on separation of sovereign powers, white separatists oppose claims that it is a supremacist ideology, which is predicated on a single, supreme, sovereignty requiring subjugation of parts of the society to the will of other parts