As to immigrants I did not say they were stealing them. The fact is in NYC there is an 'alternative' market for everything: labor, bicycles, cell phones, apartments, cars much of which would be illegal if sold or rented to US citizens.
They travel to the US illegally.
Illegal immirgants live in households that would be considered illegal due to building and other code/common sense issues.
They often buy cars that would be considered totalled and unusable.
The use pay as you go cell phone contracts that US citizens would avoid.
They work without Workers comp insurance and for less than the min wage.
They incure exhorbitant fees whenever they use banking services.
Why do you suppose any of the other goods and services they purchase are through normal channels?