Race-based generalizations almost always end up leading you in the wrong direction. There's substantially more white people living below the poverty line compared to any other group [1] and those poor white communities are trapped by the same lack of awareness of opportunities as any of the minority groups you mentioned. Whites and Asians are over-represented in the affluent groups, which leads many people to look at things through a racial lens, but on a per capita basis, whites dominate the impoverished population.