Earlier quoted context omitted.
Pew Reasearch puts the number at 3.5%, which I think is quite high enough to impact growth. But downward wage pressure at the lowest sectors comes from both legal and illegal immigration. It would be interesting to see what at short term lowering of immigration would have on wage growth.
Aren't a lot of these immigrants doing highly skilled and highly paid labor? They don't depress wage growth for low paying jobs. And they actually increase demand for their products.
Personally, I have nothing at all against the illegal sort. Day laborers, for instance, tend to be great workers and good people, happy to put in a hard day's work for a $50 and some good meals. At the same time though, I have to consider that this is really distorting the economy since it drags down wages for all people willing to do this work to that level, which is not really fair to people that want to make a living doing this work but want a higher standard of living, to raise a family, etc.