Challenge someone's racial bias towards white people and acknowledge the existence of poverty within the white community.
Get real. The vast majority of white people are no better off than black people. Do you deny that there are poor whites or are you racially biased against white people?
When a poor white person complains of his condition would you say to him, "You have no case to make, you have been in charge of every institution, business, bank, school, law enforcement agency in this country for 400 years".