Well I'm not european, and I don't just THINK of black africa ,as you say it, like lot's of guys around who never spent an hour there, I spent 10 years in African soil, and half of it was in west, black africa!!
The fact is it's never gonna happen in places like Nigeria for one simple reason, mentality of people need to change and also the condition of the country needs to change, specially in terms of safety! Yeah Dubai, Abu Dhabi, etc were quiet nothing before some rich people from US, Europe and some neighboring countries started investing there, but then they made it somehow that when you step into Dubai, you rarely see locals! mot people are outsiders and they need to obey the rules! In Africa that doesn't happen! They never let anyone to come and start changing their countries (for their own freaking benefits!) let alone start obeying rules made by those people!
You better start seeing things like they are, not like you want to see them!