One definition of slavery can be found
here;
And I Quote "work done under harsh conditions for little or no pay"
You want cheap labor, then you want people to work under slave conditions.
Yes, I have been to Hazelton and West Hazelton. I stayed there for two days and you are right that it is a shithole, but maybe it is because illegals have been the major reason of it being in the state it is, because some Americans are to lazy and scarred of doing the dirty work to clean it up themselves.
So I would suggest, if any American has a problem with Hazelton, get off your lazy ass and go clean it up yourself.