In his second verse, Killer Mike essentially exposes the same theory as Michelle Alexander in "The New Jim Crow". According to him, the War on Drugs and the War on Terror were instruments to control the population and let the police terrorize whoever.
The main targets, though, were Black boys, many of whom ended up as victims of police brutality or, in the worst case, as "new slaves" in the prison system boosted by Reaganomics. Under Reagan, in fact, many prisons ended up privatized and became a profitable business; and, according to the 13th Amendment:
Neither slavery nor involuntary servitude, except as a punishment for crime whereof the party shall have been duly convicted, shall exist within the United States, or any place subject to their jurisdiction.
In the words of Killer Mike, this is the reason why they givin' drug offenders time in double digits. Harsh punishments for drug trafficking and possession, allow the 13th Amendment to become a way to enfroce a new form of slavery through mass incarceration, of which, Black boys are the main and disproportionate targets.
In the America that Killer Mike and Alexander are painting, equality is prevented at every turn by a system designed to keep a racial caste order in place while, at the same time, profiting from it in an indirect and subtle way.