While America was being built into an industrial nation with gigantic assets and vast opportunities, the groups who got here first and acquired footholds of power sought to protect their turf from any perceived encroachments.
The Chinese came to build the railroads and special laws were put on the books against pigtails and laundries aimed specifically at them.
The first actual laws against drugs was aimed at a prejudice against the Opium Dens where it was rumoured white women were being lured into White Slavery.
The Native Americans had been sucked into the Early settlers battles against England. The French and Indian war devasted relations between all parties. Indian children were removed from the "savages" in tribes and reared as good little Christians. The phrase "the only good Indian is a dead Indian" was quite often invoked. Manifest Destiny was declared as a God-Given right and imperative to remove the Indians from their land so that the Christians could develop it.
During World War II peaceful families and shopkeepers who were Japanese were ordered to sell everything they owned (business or home) and report for "relocation" in concentration camps here in the U.S. The reactionary fear that American born Japanese might secretly harbor loyalty to their own race trumped civil rights.
Englishmen hated the Irish who landed on boats arriving in New York harbor and tricked them into volunteering to fight in the Civil War (making all sorts of promises of benefit "later."
The point of all this?
PREJUDICE and RACISM is a HUMAN problem. It is not a WHITE problem and a BLACK problem.
The Jews and the Arabs have been at each other's throats for thousands of years.
To call RACISM a Black/White issue is to ignorantly overlook the nature of differences within the human psychology which cannot be overcome for many people no matter what progress is made otherwise.
We all need to find a better reaction to prejudice than merely getting exercised and pointing a finger. How about a rational approach for a change?