White Supremacy Movement has very profound philosophical and ideological basis: if you look carefully at history of modern philosophy the idea of Freedom had been developed by Northern Europeans: Immanuel Kant, Hegel, Leibnitz, et cetera. They created the very concept of Freedom and human rights and liberties (which became the basis for many constitutions including American) and only then these ideas spread throughout the world and came to non-white population. What does it mean ? It means that white people historicly the Source of all Freedoms for other races and if non-white people deny it they deny own Freedoms and rights they have and, since, one can not apply these rights to them.