Devils?

As I read “Our Nig” in its entirety it became more and more obvious to me that Harriet Wilson’s attitude towards writing the novel was directed at trying to force the reader to understand the obvious and ever-present racist sentiment that presumably all the characters have (even the black personages). At one point Mag snarls, “Who’ll take the black devils” (11); the fact that Mag is the mother of those ‘devils’ entails that she carries a serious racist perspective on society. Mag seems to hate herself for having done what she has done (Marrying Jim); she hates herself for having put herself that low. Harriet reveals the fact that her mother Mag has lived as an outcast for years. At the part where Jim proposes to Mag even he claims that a white heart in black skin is better than the opposite. At this point in history it has become customary or even inevitable to associate blackness with evil/ the devil. One has to ponder if Harriet is truly hurt by what she is writing, or if she is simply used to the fact and has decided to write about it for the sake of writing?