It's the same argument against the minimum wage - it does absolutely nothing to increase anyone's 'living wage'. It also impacts 'official' unemployment rates, because employers simply move to the blackmarket ie illegal immigrants.
So what happens when the wages are decreased few times because the work is being done in a Third World country?
"Let London manufacture those fine fabrics of hers to her heart's content; let Holland her chambrays; Florence her cloth; the Indies their beaver and vicuna; Milan her brocade, Italy and Flanders their linens...so long as our capital can enjoy them; the only thing it proves is that all nations train their journeymen for Madrid, and that Madrid is the queen of Parliaments, for all the world serves her and she serves nobody." (Prominent Spanish official - Alfonso Nunez de Castro in 1675)
Wage increases once drove increased productivity through innovation (that's what made the US the leader it once was). Now the most innovative idea American industry has seems to be moving production off shore.