We all acknowledge skin color.   It makes a difference today, it most certainly made a difference in Unthanks world.    We can pass law to prevent discrimination, but no law controls the human reaction to what we see and the emotional reactions that follow.

In the most polite of terms, your saying racial discrimination toward blacks could have been stopped by everyone agreeing to be 'color blind' belittles the suffering of generations of black American families throughout our history.    The effects of both legal and illegal discrimination against black Americans, for many generations, continues to shape our nation today.    

We will never be a color blind nation.  We can be a more equitable society that doesn't let our bias affect the equal application of our civil rights.