Underpaying American labor market mass produces -- out of (their own) control -- boys.
Boys up to the age of 18 1/2 are in the emotionally dependent stage for all practical purposes as much as if they were still only 12 years old. This stage turns off over about a week's time as close as I can observe -- a pure social instinct phenomenon.
Emotionally dependent boys who think nobody cares about them literally will not care about themselves (easier to imagine at 12 than 18) -- thus no penalty can deter them from crime (very easy to believe if you deal with -- or try to deal with -- out of control boys). They are more out of their OWN control than anything else.
This out of their own control thing works as fully on kids who are merely out of parental or guardian control (typically, of a loving but unable to keep up during the "pissing vinegar" stage adult) -- every bit as much as with kids who are the very worst neglected; strange.
Our uniquely low paying American labor market mass produces families headed by unattached females -- many of whom would be unable to control heavily aggressive teen boys even in the most favorable circumstances. Thus our uniquely low paying labor market uniquely mass produces criminal activity among families who would (are?) otherwise perfectly psychologically normal.