"That doesn't tell us anything about your average white supremacist at all! Most white supremacists are peaceful, kind people that just want to live their life and not be discriminated against"
That logic can be applied to any large group.
White supremacy lost popularity a long time ago, so if anyone wants to embrace it has to be willing to take all the baggage that comes attached.
Of course the media will focus its attention on white supremacists a lot more than on liberals who want to see your dog and your neighbor as equal. I like that approach because peaceful white supremacists can easily convert into followers of Hitler-like leaders, and that Joe we need to prevent.