The blunt reality is that "black" voters should not have to be counted on to save American democracy from the abyss.
The increasing number of black, brown and Asian political leaders (Obama, Sotomayor, Kamala, etc) also should not be ignored in terms of represenation.
And your point about racism against white men is understood -- no one should feel that they are discriminated against by their government or because of their background.
In America however nearly all of the data indicates that being a "white male" is a net positive with regards to racism and discrimination.