you're looking at two major cause of crime:

1) property rights (sometimes stated as 'poverty'....but the reason we have poverty is because of property rights). you can usually fix these things.
2) stupidity. stated bluntly. i mean, we can state this in different ways: mental illness, mental retardation, developmental disability, etc - but the broad, over-simplified way to grasp the issue is to state tersely that there are a great deal of stupid people on the planet, and they can't be fixed.

so, we have to separate the stupid from the poor, basically.

we can help the poor.

we can't help the stupid...