Slavery never left it just got rebranded.
The Thirteenth Amendment needs to be amended.
Per Wikipedia: The Thirteenth Amendment (Amendment XIII) to the United States Constitution abolished slavery and involuntary servitude, except as punishment for a crime. The amendment was passed by the Senate on April 8, 1864, by the House of Representatives on January 31, 1865, and ratified by the required 27 of the then 36 states on December 6, 1865, and proclaimed on December 18, 1865. It was the first of the three Reconstruction Amendments adopted following the American Civil War.
That’s by design. Teaching people skills to support themselves gives them an opportunity to break out of the cycle of recidivism. Teaching people skills that are useless for most employers but are profitable to the slavers ensures that they are left disadvantaged, where they’ll eventually end up back in prison for another round.
To the same end, having a culture where employers are legally permitted to background-check candidates for any old job makes it harder for reformed criminals to reintegrate into society.
When adding “tough on crime” politicians and their legislature to the mix, you can begin to see exactly what the goal is.