Ever heard of a little thing called the Crusades? Kind of the ultimate us vs. them--"if you're not of my religion I will kill you."But, a large number of people are stupid. If it isn't race, its religion, which judging by the past in Ireland and Africa can be an even more violent form of us vs them.How's this for a classification: we're all human.People that think racism is gone, don't live in the real world. As long as there are humans on this planet that are different from each other it will exist. We all compare ourselves to others. As a species, we have to classify everything.
Racism is an easy excuse for ignorant people to feel like they are better than other people. But really all it does it show how ignorant those people really are.