Why Did The African Nations Refer To Colonialism As Banditary?

African nations still refer to the colonial years as a time of banditry, because many of the lands claimed, which were inihabited and undeveloped, where claimed by developers
like Livingstone, Rhodes and Moffat. Who set up missions schools, infrastructures, roads, hospitals, clinics, mines, and rail transport. All the things necessary in settling a country. Much as other nations  did in America, Austalia,and all over the world.
The objection seems to lie in the fact that the land was the land of the local indigenous peoples or tribes, who were living primitive lives, and of course dying of diseases like malaria, yellow fever,sleeping sickness, and bilhazia.
The pioneers, mainly of British stock ,arrived to set up these non exsistant services and business  and mining rights, most of which still function today, and are used by , and benefit, the same population who claims they never wanted them in the first place. I dare say, particularly in  the case of Southern Africa, had these pioneers or settlers not arrived, The local populations would now have the equivilent of the ravages of central and northern Africa, where genocide, war, famine and barren raped land, are the legacy they have to face.
Perhaps the African nations today should pause to reflect, how they would have survived if these bandits had never arrived to give them  the schools, missions, hospitals, libraries, gold and diamond mines, roads and transportation systems they enjoy today, and that they base
their currencies on.