In the history and evolution of Humanity, the nastiest tribes always win. This is not an excuse for racism, just pointing out a historic reality. Large civilizations in the recent past, such as the Greek and Roman were in their origin fierce warrior clans, conquering all and ruthless. But they developed civilized infrastructure and became comfortable. Then they were pushed out by the Germanic hoards and civilization took ten steps back. If you follow human history, the cycle repeats itself over and over. Perhaps at some point the non Caucasien portion of the world will rise up and take over. It has happened before, Genghis Khan and his Mongolien army took over a huge swath of the world. The Chinese Empire was extensive and powerful. History and power are never static.