White Priviledge is something that our country will always suffer from. It is where we came from and what we have done for hundreds of years. Even in the colonial times the whiter and more pale the color of your skin was translated into how wealthy you were. Not being tanned means you did not perform labor outside implying you do not do hard work signifying status.
The author here tells us that the system keeps people in place and not to challenege the rules and codes of power that Delpit teaches us. If we do not challenege those concepts our world will never develop and will only et worse as time goes on.