Oh you did.
Read the constitution.
It's in the 8th amendment. Cruel and unusual punishment isn't allowed.
So if you're not kosher with it, you're not kosher with the constitution.
But lets not get into semantics.
BTW, where do you get the idea that imprisonment is like "two star hotel"?
And do you have any idea how expensive it is for a country to have potential workforce and tax payers rottening inside a prison?
-Hedge
Thankfully, the constitution is not the Koran, and it can be changed. To treat any text as absolute eternal truth is idolatry. Constitutions can be amended by the people.
As for prison, the punishment is just too light for some crimes. Don't get me wrong, I am not saying that a guy who robs a 7-11 should be burned at the stake. I am saying that there is tremendous evil out there that is going unpunished.
But let's not change the point. If a guy kidnapped, repeatedly raped your sister, say, tortured her for weeks, amputated her bodyparts one by one and fed them to wild animals as she watched, gouged out her eyes and put burning coals in her eye sockets, then brutally killed her, you would be OK with him going to prison for life?