In Howard Zinn’s A People’s History of the United States, he writes about early colonists and how the rich were feeling the heat of poor white folks and poor black folks associating too closely with each other. The fear was that the poor, despite being different races, would unite against their wealthy overlords. Shortly after, the overlords began to pass laws that banned fraternization between the races. The message to poor whites was clear: “you are poor, but you are still far better than that poor black person over there, because you are white.”
Polarization is by design, for profit.