So all this arguing that immigrants are depressing wages is nonsense
Or maybe your views are nonsense. There is no 100% correct view, because its a view. There are economists who disagree with each other.
Eg just yesterday...
"He noted that one respected study, by Dustmann, Frattini and Preston, found that each 1% increase in the share of migrants in the working age population leads to a 0.6% decline in the wages of the 5% lowest paid workers."
Its Pestons blog that was trying to unpick the seeming incompatabilities between the latest few BOE governers statements
"And to be clear, the general point that an influx of workers from abroad represents a weight on the pay of the indigenous population is a statement of the overwhelmingly obvious: it is simply a version of the law of supply and demand, that the price of anything falls when supply rises relative to demand.
So there is nothing terribly revelatory in Mark Carney saying, at the Bank's three-monthly news conference on its Inflation Report, that immigration had held down the rise in wages and living standards."
Link to full blog (and lets not forget Peston is pretty left wing leaning in general)
http://www.bbc.co.uk/news/business-32739852