So I take it you want to help the RATs in their endeavor to make America a Socialist one-party state. I was in the CA DMV in Napa, CA today. The illegals were there in force getting their driver's licenses. And virtually all of them had fat wives and three or more children. So as far as being "industrious" is concerned, they certainly understand how to procreate.
Read again what I wrote: We trade the useless druggies of every flavor for the industrious types of every flavor. Mexico just happens to be a good place to start making the exchange because there are so many of them here already.
You don't have to deport everyone. Just start by deporting those with criminal records, then work your way up to the druggies, the illegal alien voters and those who make their way by suckling off the government teat.