New York Times commentator Charles Blow took aim at that Heritage Foundation immigration "study" that has turned out to be written by some right-wing hack whose Harvard Ph.D. work consisted of asserting that Latinos have low IQ scores, probably because Latinos are genetically dumb. Blow has a name for the weasel words -- "skill-based" differences -- this author suggests when trying to "blunt negative reaction."
I don't quite agree with Blow that this is "Roundabout Republicanism."
I think better term for what is practiced here is "Redoubt Republicanism." This is a political movement that has chosen to lock itself away, against the United States that is, and even more against the United States that will be. They seem to think they are re-enacting the battle of the Alamo, heroes standing pat against a foreign horde. Clinging to white supremacy, Republicans are immured in a prison of their own making.
Also, since when did anyone, left or right, believe that IQ tests measured anything except the ability to take IQ tests? I thought scientists like Stephen Jay Gould had killed that notion off a generation ago. But the ghoulish myth recurs ... Harvard must have gone downhill.