I am glad that we agree about the integrity of the National Academy, Ben. Their study shows that each illegal cost the taxpayers $89,000, whereas immigrants with some college each benefit the taxpayer. Why, Ben, would any conservative favor the continued importation and legalization of these treasury draining, Democrat voting, illegals by the millions, especially when we could instead substitute legal immigrants who might benefit us???
You want to use the "snapshot" method of measuring but economists use the thru-time method. The Thru-time method is the method that the US has always used with immigrants.