After the Civil War, racial segregation forced African Americans to share more of a common lot in society than they might have given widely varying ancestry, educational and economic levels. The binary division altered the separate status of the traditionally free people of color in Louisiana, for instance, although they maintained a strong Louisiana Créole culture related to French culture and language, and practice of Catholicism. African Americans began to create common cause—regardless of their multiracial admixture or social and economic stratification. In 20th-century changes, during the rise of the Civil Rights and Black Power movements, the African-American community increased its own pressure for people of any portion of African descent to be claimed by the black community to add to its power.
What decreased the pressure for people of African descent to be claimed by the black community?