> Double predestination is the idea that not only does God choose some to be saved, he also creates some people who will be damned.[0]
Even setting aside whether that's a mainstream Calvinist belief or not, the idea of "Good people" and "Bad people" is deeply ingrained in American Culture. "The only thing that can stop a bad guy with a gun is a good guy with a gun"- that very phrase presupposes the existence of two groups of people, one Good and one Bad, setting aside the whole 'right to bear arms' thing.
And just as deeply ingrained in American culture is a lack of sympathy for "Bad people". You can make prisons a living hell, keep people in there for life after "3 strikes", remove their ability to find jobs if they ever get out- because they're Bad people and helping Bad people is wrong. It's morally superior to punish Bad people more, since they are Bad. Politicians get elected on that, calling it 'tough on crime'.
[0]https://en.wikipedia.org/wiki/Predestination_in_Calvinism#Do...