While I appreciate the historic sociological premise of your very persuasive argument. The root of all prejudice is tribal cognitions. We must understand that we are genetically programmed to cling to those of which we identify, which includes skin color and other identifying specifics. As we evolved we expanded those tribal identities to include territorial i.e. nation states and regional localities as well as religious identities. It behooves us as a culture to dispel and conscientiously dispute these primitive tribal identities and observe the world’s many cultures as a benefit and an opportunity to learn from them. I hope one day we will accomplish this monumental feat.