How did Americans feel about racism and intolerance in the 1920's?

The 1920s was a time of tension in relations between whites and blacks and between Americans who practiced the traditional "moral code" and those who rejected them. The Great War exposed black American troops to a white society. When they returned from the war, they found their situation as second class citizens still part of American society. Race riots broke out in several major cities with the most costly being in Chicago where 38 people were killed before it was over. Marcus Garvey and W.E.B. DuBois preached "Black Nationalism" during the 20s. The KKK reached the height of its power during the decade, with a march in Washington, D.C. in 1924 that included many high ranking politicians. The KKK was a major power in the Democratic Party. The Congress also passed the most discriminatory immigration law to date during the 20s. People associated foreigners from central and eastern Europe as communists or anarchists.