Historically, much of everyday life in the U.S. has been organized around the idea that white is good, pure, righteous, and most deserving of privilege, power, and protection. In this way, white supremacy no longer derives its power from an explicit social acceptableness. Instead, it has wedded itself -- almost imperceptibly -- to that which is considered neutral, normal, safe, and reasonable.

Additional Resources:

PBS, The History of White People in America