The National Academy of Sciences’ (NAS) exhaustive literature summary on the economic effects of immigration concluded that: “When measured over a period of 10 years or more, the impact of immigration on the wages of native-born workers overall is very small. To the extent that negative impacts occur, they are most likely to be found for prior immigrants or native-born workers who have not completed high school—who are often the closest substitutes for immigrant workers with low skills.” Although the effect is small, RAISE seeks to take advantage of the finding in the academic literature by inferring that if an increase in the supply of workers slightly lowers some wages then a decrease in that same supply will do the opposite.
The entirety of society — rich, poor, middle-class — is served well when we have a strong economy, sensible immigration policies, reasonable worker protections and appropriate taxes. This isn’t just about being humanitarian. It’s about recognizing that the common good helps even the wealthy, as much as they bitch about every single cent they spend on the poor.