Good advice all round I believe.
What about asking him if he could do anything he liked in life what would it be.
That is what he should be doing instead, and where he is likely to fit in better.
A good psychologist could help him uncover and reassess his worldview to provide him with any clarity he seems to be lacking.
In CBT (in psychology) our behaviour and beliefs have to align or we will experience Cognitive Dissonance.