(1) Capitalism and Communism: The concept between capitalism and communism is very wide in terms of authority over economic resources. Native Son by Richard Wright has much of capitalist effects in the narrative. Dalton family and Buckley family are good instance of those living in the capitalists paradise while the Thomas family is on the communist side. The concept of capitalism favoured the Dalton but not the Thomas which could be one of the reasons associated to Bigger Thomas outrageous behavior in the novel.
(2) Fear: Let's look at the theme of fear in Native Son by Richard Wright, I guess their should be no reason for how what way fear is among the themes in the novel since most violent acts in the narrative are preceded by fear; the violent killing of Thomas's family rat was due to fear, violent smothering and Incarcerating done to Mary Dalton by Bigger Thomas is due to fear, Bigger's violent smash of Bessie with brick is as a result of Bigger's fear of betrayal.
(3) Discrimination and Oppression: As the story goes, the blacks were oppressed and discriminated against by the the whites even to the level of touch. The difference in social status and class made people like Bigger felt oppressed.