Yes. The prison population has finally begun to go down somewhat, but the apparatus is still expanding.
You may have heard of the 85-acre Cop City they're trying to build in Atlanta. You probably haven't heard much about the others, like the one near Nashville that will be over 800 acres.
Anyway-- I highly recommend Michelle Alexander's book The New Jim Crow.
She's a civil rights lawyer, but even she thought the complaints about the system were exaggerations, for a very long time. When she finally really connected the dots, it shook her badly. We've been conditioned to accept some truly horrific things as "normal".