King called for a "gigantic Marshall Plan" for the poor in 1964

King eventually realized that many white Americans had at least a psychological stake in perpetuating racism. He began to recognize that racial segregation was devised not only to oppress Black Americans but also to keep working-class whites from challenging their own oppression by letting them feel superior to blacks. "The Southern aristocracy took the world and gave the poor white man Jim Crow," King said from the Capitol steps in Montgomery, following the 1965 march from Selma. "And when his wrinkled stomach cried out for the food that his empty pockets could not provide, he ate Jim Crow, a psychological bird that told him that no matter how bad off he was, at least he was a white man, better than a Black man."
When King launched a civil rights campaign in Chicago in 1965, he was shocked by the hatred and violence expressed by working-class whites as he and his followers marched through the streets of segregated neighborhoods in Chicago and its suburbs. He saw that the problem in Chicago's ghetto was not legal segregation but "economic exploitation" -- slum housing, overpriced food, and low-wage jobs -- "because someone profits from its existence."
These experiences led King to develop a more radical outlook. King supported President Lyndon B. Johnson's declaration of the War on Poverty in 1964, but, like his friend and ally Walter Reuther, the president of the United Auto Workers, King thought that it did not go nearly far enough. As early as October 1964, he called for a "gigantic Marshall Plan" for the poor -- black and white. Two months later, accepting the Nobel Peace Prize in Oslo, he observed that the United States could learn much from Scandinavian "democratic socialism." He began talking openly about the need to confront "class issues," which he described as "the gulf between the haves and the have nots."