1) What were the greatest "costs" (negative consequences) of the the rights movements for the United States of America?

One of the biggest negative effects of the civil rights movement is the failure to promote equal income among the black population.

Explanation:

The civil rights movement was a major milestone in the country's history and although it has managed to prevent segregation in public and commercial facilities from happening across the national territory, it has not been able to prevent us from building an income barrier for the black population. Until today, companies controlled by blacks have greater difficulties in obtaining credit and financing. Blacks make up the majority of the unemployed population and are often deprived of obtaining basic material for their survival.