A lot of Whites are uncomfortable defining themselves using jew-created slurs.
And a lot of Whites are uncomfortable embracing their supremacy.
That will fade in time.
Discussion
A lot of pro-Whites associate the term "White supremacy" with the mindset that advocates a multiracial society with "Whites in charge" -- like the Old South: "Yes, we run everything at the moment, so it is A-OK to have infinity Blacks with 3x our birth rate in our society so we can have cheap labor."