45 years ago. Israel Cohen, a leading Communist in England, in his "A Radical Program for the 20th Century," wrote in the following:
"We must realize that our party's most powerful weapon is racial tensions. By propounding into the consciousness of the dark races that for centuries they have been oppressed by whites, we can mold them to the program of the Communist Party. In America we will aim for subtle victory. While inflaming the Negro minority against the whites, we will endeavor to instill in the whites a guilt complex for their exploitation of the Negros. We will aid the Negroes to rise in prominence in every walk of life, in the professions and in the world of sports and entertainment. With this prestige, the Negro will be able to intermarry with the whites and begin a process which will deliver America to our cause." We Thought They Were White by Dontell Jackson
It appears to be working! Or at the very least, starting to show an effect