That’s the extreme stretch a certain lobby has been pushing. Even in deep blue California, where that was the marketing for Prop 6 last year, 55% of voters laughed that characterization off the ballot. Sure, it’s like slavery, except that you’re not born into it but rather you ended up in prison by choice, it’s fixed in term instead of for life, they by law can’t physically harm you, they can’t enslave your offspring, etc etc.