@billyjoebowers There's something even more fundamental than efficiency arguments.
It's that the profit incentive is a terrible proxy for desired outcomes and is primarily motivated to lobby government for self-furtherance.
Consider private prisons. They want more incarcerated and lobby for 3-strike laws and reduced oversight.
Meanwhile government prisons want fewer prisoners due to immutable oversight and may work inter-departmentally to use recidivism as a signal for remedial intervention.