Caste: The Origins of Our Discontents

How does Wilkerson use metaphors to explain complex concepts and encourage her readers to accept difficult truths about the United States?

Wilkerson seldom names Donald Trump in her discussion of his campaign, electoral victory, and policies. How is this choice consistent with her arguments that casteism and racism are systemic problems?

How do caste systems depend on violence and the acceptance of violence to maintain themselves?