Colonisation is OVER

European countries have colonised and used Africa's land and people for some time, from the Portuguese to the British, and yet we've stopped trying to "take over" African countries.  Contemporary times seem to be focused on reparations or dealing with the consequences of colonisation, instead of continued use and exploitation of the land.  Why?  Is the land that shitty that agriculture won't continue to thrive?  Are the people that lazy that they can't force everyone to work towards industrialising civilization? 

Also, how can we terraform dry and arid land into fertile soil in order to grow crops?  This applies to Africa, the middle east, and parts of asia.  There is so much unused land, so why can't it be infused with nutrients, fertilizer, nitrates, etc.

Black slaves were not sold by blacks to whites.Whites tricked them into thinking they were going to live a much better life than they were living in a foreign country.They tricked Native indians with gifts such as blankets which contained diseases that slowly infected the population over time so they would die.These peace loving indians did not think that people would be so cruel,so they accepted them.