Isn't lumping "white people" into a single group and attributing a common characteristic or belief to them all a perfect definition of racism?
Think about it.
If you see a "Black Power" shirt, what is your first reaction?
If you see a "Brown Pride" shirt, what is your first reaction?
If you see a "White Power" shirt - well we pretty much know what your first reaction is, don't we?
White = Evil - and everyone knows it, right?