Anything that can improve lives and culture should be celebrated. Hitler, dare I say, did good things too. *Gasp*. I know it's crazy but the autobahn, modern rocketry, innovations to film, and huge medical advances were attributed to him and his reign. RADAR was developed to help combat invasions from Germany. Those things should be celebrated but we don't celebrate Hitler, as a person, because he was bat shit crazy and murdered millions of people.
Last thing I'll say and I'm done: by the logic shown, George Washington, and his army, should never been seen as honorable for using tactics the British viewed as terroristic and unconventional. I'm thankful for what President Washington did, just like there are many citizens of South Africa who are thankful for the fight Nelson Mandela fought. Nelson Mandela fought for his people and should be honored for his role in ending brutal apartheid's in South Africa. I don't think he's a saint, but I think he fought against a very brutal system and should be celebrated for helping bring that bull-shit system of government down.