Interesting that you brought this up. The fact is the Democrat politicians, including the black ones, do not want to help those areas because if they do then they will no longer be assured of having their votes in those poor cities. You must understand the progressive mindset to understand why that is the case. Progressives have been attempting to get as many people to rely on the government as they can in order to carry out their Marxist government.
Read the Cloward and Piven Strategy
https://cloward-piven.com/ for a real eye opener of how radical these Democrats/Progressives are. They hate America and plan to destroy it, thus the reason I said if you are a Democrat you are either ignorant or hate America. Either way, I don't want any damn Obama supporters around me, they disgust me.