Again, look at jobs created in the service economy in upstate New York, and you will see that it is negligible compared to NYC, Florida, or Arizona. The thing is that there are native born folks working in food service, hospitality, landscaping, etc. in those states, but there are more jobs than workers. Hence the illegals working there.
It's not a vast wasteland up here, there are thriving communities that do fine, get the work done and remain liveable without the increased tax burden and social unrest illegals bring.