"Racism" is nothing more than an evolutionary mechanism that worked really well at keeping people alive for thousands of years.

IMO it's even more then that. Loving your race and promoting it is a spiritual exercise. If you simply define race as a survival mechanism then the left and control opposition right can pilpul you out of it. For instance why do you need race in the post industrial age that allow goods and services to flow to freely across borders and ethnic groups? In a materialist egalitarian world racism is only going to keep you from trading with and learning from other tribes. Don't you want to improve your genetic material by looking for a mate all over the world instead of of your small town? Don't you want to learn how to be respectful of all groups so your boss will promote you at your globo homo company and you can make more money for you and your family? (I'm playing devils advocate of course)