Well you can address drug addiction and vulnerability to an extent but this is about autotheft? What do drug addicts or vulnerable low income people need 6497 stolen cars for? Those will probably be caught relatively easily anyway if they just drive in the area.
The thing is that they ship these cars overseas as quick as possible and for big money and nearly impossible to recover. You can't do that as some lone Joe looking for your next blow, it's a profitable criminal enterprise with multiple people taking part, to steal the cars, schmooze through the paperwork, get the cars in containers to ship, then receive payment at the other end.