The problem of the 21st Century, too : The problem of the twentieth century is the problem of the color-line—the relation of the darker to the lighter races of men ( humans) in Asia and Africa, in America and the islands of the sea".

The problem of the 20th Century was the problem of the colorline as Dubois hypothesized . And now with Rwanda refugees , Black woman British elected officials , Brexit, French anti-immigrant Rightwing party , Italian rise of fascists , Poland , etc. , the KKK - Republican Party in the US , the colorline is also the problem of the 21st ! The chickens of colonialism have come home to roost !