The United States government, prisons and the prison industrial complex, police, global capital.
The state criminalizes poverty and with its alliance to capital creates conditions for crime to occur, as the dispossessed need to take action to survive. This results in policing of poor and minority communities, and mass incarceration of the poor and people of color. Police kill 1,000 Americans annually, and arrest 10 million every year too.
Black people are more likely to get a worse sentence than a white person for the same crime. Black people are still sentenced to death in the south today (this is despite the enormous margin of error for guilty convicts).
Capital takes advantage of incarcerated people, whom they can get away with paying just a few cents an hour. The United States has been taken to court for prison slavery.
Capital exploits the global south so much that more wealth leaves Africa than enters it. The workers there are not benefiting from the free market solutions prescribed by the World Bank and IMF.
Globalization has resulted in worse conditions and worse pay for everybody. While the U.S. reached record unemployment even beating the numbers recorded during the Great Depression, the wealthiest individuals and companies managed to add billions to their already existing wealth. Again, this is while people were thrown out of jobs, out of their homes and onto the streets.