Why do human beings look for ways to divide ourselves?  Religion, gender, age, race.  When you go back tens of thousands of years, there weren't that many people on this planet relative to today.  A person couldn't travel very far and couldn't communicate easily with people in far away lands.  Groups of people lived in various regions of the world and certain genetic traits became prominent within these isolated groups of people.  Perhaps all early men had similar characteristics but time and space have distinguished certain traits. Whether a person's skin is black, brown, pink, yellow or whatever really only speaks to their ancenstry. Imagine 10 000 years from now.  Will all people be a medium shade of brown and speak a language that is a mixture of all languages? Or maybe genetic manipulation will allow people to be whatever they choose (the fashion of the day) and a computer chip will allow a person to speak any language required. I guess the point I'm trying to make is that it's so superficial to decide something about a person simply by looking at him/her.  Most people don't make assumptions based on eye color or hair color.  Why should skin color be any different?  Language can separate people only because of the lack of understanding of each other.  Lets face it, it's uncomfortable to be surrounded by people speaking a language you cannot understand, but it doesn't make them somehow wrong or inferior just different.