I guess we erase everything the romans and the greeks contributed because they owned slaves. I guess we erase everything the egyptians have done because they owned slaves. By the way, both the romans and greeks were also enslaved at one time or another. The muslims owned slaves, as did the jews and every other civilization including the vikings, they were primitive times. Although slavery still exists today in Africa but no one wants to mention that because it doesnt fit a specific narrative. I guess black lives dont matter in Africa, black lives only matter when a criminal is resisting arrest.
Back to Colombus, he may have done some bad things that were “ normal for the time period”, he did so much good and contributed so much.