
By Daniel A. Gross — Mbakumua Hengari grew up in the 1970s on a farm in southern Africa, in what is today the nation of Namibia. The arid soil around his family’s homestead was sandy and grassy, a poor fit for staple crops, so he and seven siblings subsisted on a modest herd of cattle, sheep and goats. Hengari blames systematic racism for his family’s poverty — and he and…