Because the perceptions of African-Americans are still conditioned by the economic devastation inflicted by 242 years of slavery, followed by an additional 103

Because the perceptions of African-Americans are still conditioned by the economic devastation inflicted by 242 years of slavery, followed by an additional 103 of legal disenfranchisement and discrimination, followed by only 57 years a criminal justice and militarized police force that continues to inflict disproportionate harm on (yes, even innocent) African-American men living in the areas where until 57 years ago were the only place they could safely live. History: without it, life is confusing. On the other hand, other non-European minorities were excluded from the US all together, leaving less time for stereotypes to calcify. The IT industry itself has a strong presence in India and China, so cross-pollination is logical. It has not had a similar expansion into Africa, or we might see similar growth of African entrepreneurs.