You have no concept of how racist you sound. You are literally arguing that Africa would be a better continent if more white people lived there.
Do you realize, that not long ago, Asia was the most improvised continent in the world? It wasn't until China started industrializing that the entire continent became more wealthy. Yet, still, there is horrible poverty in Asia. Do you not comprehend that? Then, as far as Europe goes, the former Soviet bloc countries are notoriously unstable, corrupt, and improvised. There are huge populations of street kids and people living in third world poverty.
Your entire world view is shaped by the fact that you think African people are the worst of all people, and the worst of all cultures in the world.
Nothing you're saying deserves any respect, because you are coming across as extremely simple minded and culturally ignorant.
If you're interested in why some countries are wealthier than others, let me recommend a book. Guns, Germs, and Steel: The Fate of Human Societies by Jared Diamond.
You're obviously trying to understand the world in terms of racial stereotypes and superior/inferior cultures and races. All you're proving is your own prejudices, and that you see the entire world from a white supremacist POV. Did you ever think that human beings are regions are wealthier and poorer than others based on reasons that uniform across human societies, great human civilizations rise and fall according to universal patterns, and it's maybe NOT an issue of certain races or cultures being dumb, lazy, or playing victim?