True
Under segregation, owners of establishment could decide the manner in which they wanted to treat African-Americans. This often took the form of separate spaces for African Americans or forbidding African Americans from commonly used spaces at all.
The legal challenges contribute to the decline of Reconstruction when President Lincoln announced that there is a plan for reconstructing the Confederate states which are already under the Union control. He proposed to excuse the Confederate who took a pledge to support the Union.
Reduces their power--elites in Latin America control economic and political aspects of society. Reforms would provide more groups with rights, reducing the influence of the elite.
In any country, elites often control the means of production and the political system. Reforms, especially coming from lower classes or oppressed groups, would potentially reduce the power and influence the elite group has. This has been true through many revolutionary movements.