New to debate. Right. Not only did YOU quote the Texas Comptroller, but I read an article on which you relied. . . . which, by the way, cited Harvard's George Borjas, who is widely recognized as the top economist on immigration.  You WERE talking about the ECONOMICS of  immigration, weren't you? It's a mark of good debate to quote the best, provided your reader is up to it. I assumed you were, but I now see you're in over your head.  

As for refutation:  Your broad point was that illegal immigration is good for our economy.  My counter-point, citing Borjas, was that illegal immigration lowers the wages of the American poor.  You had no come-back, for the most part, but said only that "the current unemployment rate is so low ... that any one who wants to work is working."  That's false.  Unemp for black teens is 21%; for women over 50, finding a job is very difficult; for high-school drop-outs, unemp is about 7%.  About 14 million people who want work are unemployed.