Timberwolf, I am well aware of our colonial history - especially the parts we are proud of. In school they only really teach you that side.
It's not about picking and mixing.
Try and learn both sides of history. Read up on the Mau Mau uprising in Kenya, King Leopold's absolute reign in Congo, the apartheid regime in South Africa, Cecil Rhodes disenfranchising black voters in Rhodesia and taking their land off them (Zimbabwe).
I don't think you understand why there is such anger and I don't either, because I'm not black, but please take time to read up on both sides.