At sometime we have to stop living in the past.  Great people did horrible things in the past but the social norm was different. George Washington and Thomas Jefferson were slave owners and the famous expeditions of Lewis and Clark included a slave.  Abraham Lincolns wife had family owned slaves and Lincoln expressed views  that he believed whites were superior to blacks and was against miscegenation and allowing blacks to serve as jurors. Shall their monuments and memorials be removed,  their likeness stripped from the US currency and reputation  forever besmirched ? 

Learning from the past is great but driving to a new and better future whilst looking in the rear view mirror,  is very likely to end badly.  Lets learn, then move forward and make the world better than it was hundreds of years ago.