It is so vulgarly arrogant to come up with charities to help those poor ignorant African folk by giving them medical checkups, reading lessons, or teaching them basic job skills. The message there is "the reason things are going so badly for you is because you lack basic knowledge."
It really makes whites feel better about themselves to visit the slave shack and toss a few cookies around--much, much easier than eliminating the hundreds of years of clusterfuck colonialism, economic screwing, proxy warmaking, imposition of tyrants and arms, natural resource theft and genocide.
Shove your "charity" right up your self-righteous arse.
(Oh, and if you get a tax deduction for it, it doesn't really count as "charity" in the moral sense.)