Explain How Has The World Been Changed By African Slavery

How has the world been changed by African slavery? How does everything bad, good, and in between have an effect upon African slavery back in the day? And may I ask, why the Africans?
There is definitely a reason as to all of these questions. It all starts with the Europeans and their captured Native skaves. Europeans needed plantation workers so they could essentially make money off of them. But most natives that they wanted to use as plantation workers/ slaves, were not quite cut out for the job. Too many were dying from harsh conditions and sicknesses. Plus, It was very easy to escape because they knew the lands very well and once they got to were ever it was they were trying to get to, they could easily blend in with all of the other people and have the perfect escape plan. This was challenging for the europeans, trying to deal with all of this. So they looked to Africa.
First of all, Africans were practically unescapeable seeing as how their skin color is so much darker than the natives, they couldn´t really escape and blend in with everyone else for the perfect escape plan like the Natives. Second, even if they could get out it would be hard finding a place to blend in or try to blend in if you don´t even know your ways around the land. Which essentially would make it easier for the Europeans to track them down. And third of all, Africans before slavery still didnt live too gloriously. They were so exposed to so many different things that they were found to be practically immune to just about everything. That means less sicknessses which leads to less dying, which is a great