I'd really like to see on what basis you're writing this when many other things point to either the opposite or the numbers being equal.
>because society's attitude towards checking out has become too lenient and soft to keep most these boys
Society has been actively shaming and demonizing men for decades now, trying to get them to accept working through what feels like an untraversable valley. A valley which was in many ways easier to traverse before. Society took away the incentives, and now tries to replace it with punishments. What do you propose that won't cause severe animosity in a group historically known to destroy societies when pushed to the edge?
The extremes aside, this is the reality behind most 'boys' checking out. Men are biologically wired to try and excel if they see opportunities. They aren't seeing them anymore.