What is the principle of KKK in the US?

It is the white supremacy clan or they call Ku Kux Klan if im not mistaken. Doesn't it have any similarity with the NDF I suppose in Germany pertain to the youth or skinheads as they called still head over hills to Adolf Hitler. What is our world heading too? Im so bless i donot live in the US, esp. with this kind of ideology that the white skin rules over the colored skin and they should be eliminated on this earth.