What is the symbol of whiteness suggests in the novel? For Bigger and the narrative?

Bigger conceives of “whiteness” to be a symbol of power and hostility which exists for no other reason than to thwart his every move. He does not discern whiteness according to actions or contrast the difference in people that make them individual; he lumps every white into the same category and has set upon himself to fight against them all. Bigger is a racist as those he deems racist.