It was a two way street. They got a lot out of it too - eg. rule of law, clean water, sanitation, roads, jobs, cars, entertainment, modern medicine and hospitals, greater life expectancy, trade and commerce - the list is endless.
Murder, genocide, mutilation and brutality, torture, enslavement, poverty, disease, large-scale national land grabbing, political imprisonment, racial segregation, forced labour, famine, massacres, violent coercion, etc.
Yes the colonisation of Africa brought a lot of things to the African people.
Yes the colonials gained a bit too. Can you blame them? Would you risk your life and schlep all the way across the high seas to deepest, darkest Africa, etc, etc for nowt. Less bleeding heart and more logic needed please. It may be fashionable to villainise the white man, but that's just following the pathetic liberal herd.
Yes the colonial powers gained slaves, diamonds, gold, vegetable oils, gum, ivory, hides and skin, palm oil, copper, rubber, cotton, tea, coffee, cocoa, tobacco, etc.
Bu they brought misery, poverty, epidemic disease, enslavement, apartheid, and brutality, and you call it a two-way street.
You'd best put your fingers in your ears, and cover your eyes because the truth will hurt.