That is if I define "hacking" as "making something out of nothing," and assume "immigrants" are the archetypal Ellis Island-or-jornalero raw, dressed in rags types.
Nowadays you can't travel the internet without encountering an article about "hacks," or "hacking" something. There's even a category called "life hacks" or "life hacking", which are usually about making things out of common (cheap) materials. Things from air conditioners to antennas.
At its foundation, hacking is about making function out of available form.
And who better to make function out of available form than those without much to begin with?