Even if you don't have a problem with the morality of using prison labor, and I do, the reckless stupidity of doing so in the Democratic Party primary, were even the most squishy Democrats want to signal virtue, positively buggers the mind.
From a non political perspective, giving prisoners a list of people with enough money, and the profound lack of common sense required to donate to Mike Bloomberg, seems to be problematic as well:
Former New York City mayor and multibillionaire Democratic presidential candidate Mike Bloomberg used prison labor to make campaign calls. Through a third-party vendor, the Mike Bloomberg 2020 campaign contracted New Jersey-based call center company ProCom, which runs calls centers in New Jersey and Oklahoma. Two of the call centers in Oklahoma are operated out of state prisons. In at least one of the two prisons, incarcerated people were contracted to make calls on behalf of the Bloomberg campaign.This is the most Mike Bloomberg thing ever.
According to a source, who asked for anonymity for fear of retribution, people incarcerated at the Dr. Eddie Warrior Correctional Center, a minimum-security women’s prison with a capacity of more than 900, were making calls to California on behalf of Bloomberg. The people were required to end their calls by disclosing that the calls were paid for by the Bloomberg campaign. They did not disclose, however, that they were calling from behind bars.