This problem actually reflects that the participants in American mass movements really lack scientific theoretical guidance.

Although I began to reflect on why the racial discrimination in the United States has not been improved and solved for hundreds of years.

However, due to the discovery of the new continent, historical events and figures such as the slave trade. In fact, the fundamental reason is the national nature of the United States, the economic status and class status of blacks, Indians and Hispanics in polarization.

Class struggle and class contradiction are irreconcilable.