White supremacy is a racist paradigm based on the assertion that white people are superior to other races. The term is sometimes used specifically to describe a political ideology that advocates social and political dominance for whites.
White supremacy, as with supremacism in general, is rooted in ethnocentrism and a desire for hegemony. It contains varying degrees of racism and xenophobia. White supremacy is often associated with ethnic cleansing and racial separation.
White supremacy has often resulted in anti-black racism and anti-Semitism, although it has also involved prejudice and discrimination against a wide variety of "non-white" groups, including Arabs and the various Asian peoples.
Not all white supremacist organizations agree on which group is the greatest enemy. However, many white supremacists consider Jews to be the gravest threat to their cause, and accuse them of manipulating other minority groups for their own gain.