By September 1867, 703,000 black southern people registered votes against 627,000 Caucasus in the south. Whites tried to prevent blacks from electing Republican state governments in the south, but they all failed. Many African Americans were elected to the Southern Politburo Bureau. In 1868, Republican led parliament passed the 15th revision. The amendment supported the black voting rights.
The US Constitution prohibits unequal treatment under the law, but in many states there is no law to protect citizens from racial profiling. This is common in the USA - African Americans and Hispanics are more blocked by police than Caucasians
In America's labor law different treatment is illegal discrimination. In the United States, this means that individual actions are inequivalent due to the protected characteristics (race, sex, etc) stipulated in chapter 7 of the American Civil Rights Act. This employs a neutral rule that treats each person equally, but the different influence of employers who adopt a neutral rule that adversely affects certain protected characteristics compared to others It is quite contrasting. Chapter 7 prohibits employers from handling applicants or employees in different ways because they are employed in protected classes. Different treatment is violated if individuals in the protected group are proven to be selected and treated differently than others who are on the criteria not permitted in Chapter 7. The question is whether the employer's behavior is promoted by a discriminatory intention.
According to all three treaties, unequal treatment between minority students and white students contradicts US international obligations. In the US report to the Commission on the Elimination of Racial Discrimination, the Government characterized racial discrimination as major private discrimination. However, school differences are not the result of deliberate or private actions. School discrimination is institutional racial discrimination and must be settled by the United States. The United States is obliged under the Committee on the Elimination of Racial Discrimination in order to protect everyone from acts of racial discrimination and discrimination or laws affecting discrimination. According to the Convention against Torture, the United States must prevent all forms of torture, including mental torture. According to the International Covenant on Civil and Political Rights, the United States must protect all children as minors of society regardless of their ethnicity. These requirements are not yet met