If White America is so evil, why immigrate here?

Why is the richest man in Africa white? Why is the richest country in Africa, South Africa?(the wealth reaped upon it was there far earlier, then when Mr. Mandela took office) I think it is unfortunate to unleash bigorty in the guise of ungratefulness and sa whitey is evil, when "whitey" has basically shaped the vast majority with his intellect. Right about now, some AfricanAmerican studies professor will point out some minute fact, sure not all of the successes were done by people "without color", which wholehearteadly concede to. But the fact is for whatever reason people seem to be flocking to white nations, and not necessarily to nations of color(African). Coincidentally,the nation with the largest population of expat Americans is Mexico.