I guess it's under the whole idea the immigration drives down wages. It's likely true that it does drive down wages for certain individuals but the net impact is at worse break even. Wages are an expense after-all, and if you cut the expense and prices go down, everyone benefits by at least the amount that the price had dropped. Some lose out by losing their job so their losses would be offset by the gains of others by having lower prices. This ignores the fact that more people are buying the product at the lower price. And this also assumes that markets are competitive and that the company can't just continue to charge the same price and pocket the difference, which I don't think is unreasonable in a competitive market economy.

So the many get lower prices, and pay taxes that compensate the concentrated few that are affected by the job losses or lower wages.