This was attempted in Civil War and it turned out bad for what its worthhere's an idea, if superman or batman doesn't want to kill, why not just build their own justice league prison somewhere in the fortress of solitude or on a distant planet where the villians have no means of escape
at Superman and other DC characters. That "edgy" shyt is why people justify being fukk-ups and have no incentive to end that cycle of dysfunction, because of how it is rewarded.

