Jim Crow laws banning African-Americans from most types of employment in the South.
The Great Migration of the 20th century was the movement of large numbers of southern African Americans from the rural south to northern and western cities. This migration had little to do with Jim Crow laws banning African-Americans from work in the South. The main reason was the increasing job opening due to industrial growth in northern cities.
John Locke, whose ideas were reflected in the ideas of the founding fathers of the United States, wrote back in 1690 that the natural right of a person is the right for protection of life, freedom and property from threats and encroachment from the outside.
Well it cause George Washington to come out of retirement and take part in the Constitutional Convention, where he was elected the first president of the United States.