Black rule has been an unmitigated disaster:
https://www.washingtonpost.com/world/zimbabawe-military-takes-over-the-country-says-president-mugabe-is-safe/2017/11/15/086865c2-c9d2-11e7-b0cf-7689a9f2d84e_story.html?utm_term=.9b84f9beca24
"After ruling Zimbabwe for nearly four decades, leading the country from the triumph of its independence struggle to economic collapse, the world’s oldest head of state became a prisoner of the military he once commanded.
…The move appears to end one of Africa’s most controversial political dynasties….
Mugabe led the country to independence from Britain in 1980, fighting in a guerrilla war that put an end to white minority rule. Upon becoming president, he galvanized the population with fiery speeches promising that “Zimbabwe will never be a colony again.”
But that mantra lost much of its power in recent years, as Mugabe’s presidency was marred by allegations of corruption, nepotism and repression. Zimbabwe went from being one of Africa’s wealthiest nations to a country reeling under one of the highest inflation rates in modern history, its currency so devalued that it had to print a $100 billion note.
…For decades, Mugabe had a reputation as an unwavering critic of many Western policies and international institutions. His supporters hailed him for actions such as the seizure of white-owned farms. Although the farms were meant to be given to black families, many ended up in the hands of Mugabe’s close associates, and within years a large number had fallen fallow because their new owners had no background or interest in farming."