All humans are fundamentally selfish. This is what makes it difficult for us to related to anyone that is different than us. It is the tragedy of What Divides Us.
In this article we will explore the fundamental fault lines that divide us into groups. Once separated these relationships may take on a distinct form of hostility as misunderstanding and offenses multiply.
Every line of separation is used to acknowledge my superiority and to identify those unlike me as inferior. This distinctions become deeply ingrained over time and are largely invisible to each of us.
It is very easy to spot the prejudice of others but almost impossible to see our own. Will hold our personal superiority (or inferiority) as a self-evident truth. This allows us to justify all manner of beastly behavior.