Public education is the worst thing for low income children, especially those living in predominantly black and Hispanic school districts. Blacks and Hispanics do not value education the same way. School is nothing but free daycare and free lunch - and I mean that literally. Coursework is watered down to the lowest common denominator at these schools. They simply are incapable of rising to meet the challenges of a rigorous curriculum. Unfortunately, administration is more concerned about student retention, behavior and increasing graduation rates than they are about the students who display gifted abilities - and that's typically because they are far and few.
Public education is a costly burden for taxpayers, particularly those who have a large low-income population in their city. Property taxpayers aren't getting much for their money. My recommendation is to buy up these homes and rent them out in order to see a comfortable ROI.
If you do have to live in such a city for the time-being, make sure to exercise Open Enrollment so that your children aren't trapped with children from failing families.