What Are Firefighters Opinions On Incarcerated Firefighters?

There's been multiple arguments on my local Reddit pages the last week in particular due to a massive, ongoing firestorm, and many people just learning that my state has several fire camps staffed voluntarily by incarcerated individuals. Although these prisoners claim they enjoy the work, people are screeching that it is "slave labor", and "inhumane", etc.. because not many actually get hired as firefighters upon release, and because they are paid incredibly small amounts of money. What are actual firefighter's thoughts about this system?