This is a must read. What we know about the negative impacts of immigration hasn't changed since 2006 when Krugman wrote about them. If anything, they are all the more pronounced given the rise of the cartels, fentanyl, human trafficking, etc. What has changed is the political acceptability of having an honest conversation about them. It just goes to show how far the Overton window has moved on this and so many other issues.
https://www.tabletmag.com/sections/news/articles/paul-krugman-immigration-economy"The soundness of Krugman's 2006 views on labor economics and immigration has not diminished. What has changed since, however, is the political environment. In 2024, what Krugman said 18 years ago now counts as white nationalist, nativist bigotry, and economic illiteracy."
...
"In 1997, however, an expert panel of the National Research Council of the National Academy of Sciences
concluded that competition with unskilled immigrants was the cause of nearly half of the decline in wages between 1980 and 1994 for native-born high school dropouts, who were disproportionately Black and Hispanic."
...
"Way back in 2006, Paul Krugman agreed that the benefits to the U.S. economy of mass low-skilled immigration were negligible: "First, the net benefits to the U.S. economy from immigration, aside from the large gains to the immigrants themselves, are small. Realistic estimates suggest that immigration since 1980 has raised the total income of native-born Americans by no more than a fraction of 1 percent."