Okay, I went through military's language school in Monterey, California. It was a great year+. I can tell you that there are castes and racism among Muslims. Let me explain. The Egyptians come from the most populous Arab nation, and they consider themselves superior to everyone. The Iraqi's come from the most westernized Arab country, so they consider themselves superior. The Syrians consider themselves the most warlike, so of course they are superior. And above all of them are the Sauds, because they come from the land of Mohammed and the Holy Cities of Mecca and Medina. So, they are vastly superior. And behind all of them are those poor Muslims from further south. Yeah, there is a fair bit of Racism there.