I don't have a problem with the program, or any prison labor program, as long as it's paying at or above market wages.

We sanction Chinese companies for using prison labor in their products because it's ethically wrong. We shouldn't be engaging in the same practice we sanction other countries for.

Depending on slave labor from prisoners also creates a conflict of interests for society because it creates incentives to imprison people rather than prevent crime. It should never be a smart financial move to imprison your citizens.