So when the Republicans cutoff this type of mass immigration for cheap labor purposes in 1924 they were "social engineering"? Wow that's news to me, I thought it was to end the loss of job opportunities for Americans and encourage assimilation.
Yeah... in essence, they privatize the costs of dealing with underachievers and people who lose out to others willing to do as good (or a better job) for less.
It is just another form of protectionism.