Look at this way: between 1600 and 1965 white men in America held controlling political positions of power and the ability to make laws, enforced laws, and pass legal judgements on those who broke the laws they made 99.99 percent of the time. That is not a vast generalization but historic numerical fact. The governments during those time period (first British autocracy, then American democracy, except in the South where British autocratic laws stayed on the books until 1865) controlled the schools, the jails, the courts, the judiciary, the military, the banks. All of those institutions were made under white men in political power and in 15 slave states kept that legal power until the 1960s. It’s not a generalization if you look at the faces of those in control and power. It’s simple a numbers “game”, where black Americans always rolled snake eyes because they were given loaded dice made by whites.