In a lengthy discussion (pdf) of the GOP's demographics problem, Ron Unz addresses immigration-related job displacement and arrives at a surprising conclusion. He proposes a large-scale increase of the federal minimum wage:
Consider the consequences of a very substantial rise in the national minimum wage, perhaps to $10 or more likely $12 per hour. The automatic rejoinder to proposals for hiking the minimum wage is that "jobs will be lost." But in today’s America a huge fraction of jobs at or near the minimum wage are held by immigrants, often illegal ones. Eliminating those jobs is a central goal of the plan, a feature not a bug.
The Dish 