That statute (18 U.S. Code § 3582 - Imposition of a sentence of imprisonment) that authorizes imposing a sentence explicitly states this in section A:
(a)Factors To Be Considered in Imposing a Term of Imprisonment.— The court, in determining whether to impose a term of imprisonment, and, if a term of imprisonment is to be imposed, in determining the length of the term, shall consider the factors set forth in section 3553(a) to the extent that they are applicable, recognizing that imprisonment is not an appropriate means of promoting correction and rehabilitation.
https://www.law.cornell.edu/uscode/text/18/3582
Edit: if you think this language is used to dissuade imprisonment and promote rehabilitation read the case law and how it is used.
I am not saying these criminals do not deserve punishment. However, it should not be cruel nor unusual per our constitution.
Also, by torturing/killings these individuals we are no better than them. We have come a long ways away from Hammurabi's Code. No need to return.
It's a pretty common idea, I don't understand why people have it but most people seem to.
It doesn't have hell for gentiles I guess? That's the best argument I see, like they are answering from my perspective when I ask.
The Talmud is fascinating but pretty wacky.
I don't know about "slightest"
The part where the state severely beats an innocent man and nails him to a couple of pieces of wood, and the guards hang around waiting for him to die in agony is a pretty central part of the New Testament.
And it turns out there are two other guys also undergoing the same fate. The one guy says - hey use your power and fight against the state and get us out of this mess. He is seen as a villain.
The other guy says, me and the other guy deserve what the state is doing to us, but you don't, but please just remember me in the afterlife. This guy is seen as a good guy.
So yes, there are some hints of this in the New Testament as well.