While I agree that there is a connection, those are extremely different issues. Not having food or water is entirely different from having a low-level education

While I agree that there is a connection, those are extremely different issues. Not having food or water is entirely different from having a low-level education and being discriminated. I don't think that the current system of funding public schools in the US is good. The opposite is the case. Yes, I do believe that education is a critical instrument to fight inequality and racism and that every human should have free access to high-quality education (which is not that difficult to achieve with modern technologies). By the way, your argument is missing a decisive point: The help for Africa is done by the elite, not by the broad population. Therefore, even if the inequality in the US would rise, it would take a while before there would be 'no help for Africa' anymore (until it would be politically problematic).