Less than 0.0001% of economic output in the USA is performed by penal labor, mostly by non-incarcerated people (e.g. court mandated community service such as road cleanup as penalty for traffic violations).
The people who are offended by the practice of prison labor will never let that issue go, even though it’s opt-in — you have to commit felonies in order to go to prison.
Or people who have incentives to put you in prison will find the felonies for you