The "Myth" of Race,Borders and other things that divide people

Throughout the history of mankind we have battled each other for resources. The first people that would come to dominate the world understood the importance of unity. Let us say for example that there are 3 people in the world. One is very strong, and the other two are weak. The strong one dominates and has more food and property than the other two. However, one day the two weaklings decide to join forces and overcome the "strongman."This is an elemantary picture of how early societies may have formed out of necessity. People realized that strength lay in numbers and began to live together,depending on each other in areas that they were lacking in. As societies grew complex people evolved from small families to klans, to tribes, and eventually nations. Intellegent leaders used many types of tools to inspire others to follow. After all, why should I follow you, if you are the same as I am? So religion became one of the earliest forms used for controlling large groups of people. The Egyptian kings were thought to be the very incarnation of God in the flesh. Who is going to rebel against that? Of course other tribes had Gods of their own, and it became a showdown to prove who had the stronger God. Eventually, large groups of people created man made borders which divided humans from each other. For instance; there is no genetic difference between French and Spanish, but  "topical" issues, such as language and history, create the myth of difference. What does all of this have to do with race? Race is just another "tool" used to divide people. In reality; the reason for our differences physically are connected to our environment. If you lived in a hot, sunny area, then you would have a darker skin complexion. If your ancestors came from heavily forested regions, then sun exposure would be less, and therefore the skin would be lighter. This is all basic; so what is the problem between us all? It is our collective experience on earth. Although we are all connected, and related (believe it or not) we have bought into the myth for so long. We fight and kill each other in the name of religion, nationality, and race. All concepts that are complete illusions and man made. For instance: In the early 20th century all new immigrants were routinely discriminated against for being Italian,Irish, or Chinese. You see, it is in our nature to embrace that which is like us, therefore in order to kill or destroy another human, we must create a "them." Therefore we need a reason that they are not like "us," therefore we use language, "race," religion, nationality to create animosity. This is what John Lennon spoke to in the song "Imagine." If people realized that by putting another man down, that they are actually putting themselves down, the world would be a different place. When you "Love your neighbor as yourself," you are actually loving yourself.