Original sentence: Black supremacists believe that white supremacy has been reinforced and sustained worldwide by instruments of Western economic, political and military power.Black supremacy has most oftem manifested itself among various religions or cults as an ideological tool in framing a kind of liberation theology for the societally marginalized and oppressed.Black supremacy is the belief in the inherent superiority of the "black race.Many black supremacists do not regard their belief in black superiority as equivalent to white supremacy.Since black supremacist groups have not had a similar effect on white groups, they often reject the idea that their ideas are equivalent to white supremacy
Edited sentence: By comparison, there is no powerful, far-reaching nexus of instruments under black control that have a corollary effect on whites.Historically, however, black supremacy has manifested itself among various religions or cults as an ideological tool in framing a kind of liberation theology for the societally marginalized and oppressed.It its simplest form, black supremacy is the belief in the inherent superiority of the "black race.They do not regard their belief in black superiority as an equivalent opposite of white supremacy, which historically has been reinforced and sustained worldwide by instruments of Western economic, political and military power.This belief is usually expressed within a bilateral framework, that is, within a black-white context