Just because you’re paranoid does not mean they’re not out to get you.
Maybe it's true: immigration does exert a downward pressure on wages. But maybe it's NOT TRUE. Plenty of economists find that the incremental demand for goods and services created by immigrants -- and therefore economic growth -- more than offset the competition for wages. These economists base their argument in evidence, not reason. In fact, there is no correlation between cities with larger immigrant populations and lower wages. And there is plenty of evidence to the contrary.
But it's certainly true that the argument is an authentic expression of fear and anger of working class whites. They BELIEVE that immigrants are taking their jobs for lower pay, thereby driving wages down. And they BELIEVE that the system is rigged against them because to them it's self-evident: low wages are good for employers, good for business, good for the establishment. And whether they're true or not, these beliefs have an effect on our politics, our government and our history.
This essay by Lynn Vavreck in the New York Times is a classic summary of this dilemma and it's impact not only on electoral politics and public policy but also how we think of ourselves.