Some people are just *icks regardless of geography, citizenship, or employment. At points in my life i have been extremely broke either due to unemployment or student loan/medical debt. Not once have i broken into a car or stole. I lived next door to about 10 illegal immigrants and never locked my door. Never once had a problem yet two of my room mates that came from upper middle class families robbed me blind. I would just be careful not to leave anything valuable in my car.