>"When the costs become to high to remain competitive with prices elsewhere, the market would force new methods. New machines, and methods would be implemented, it is the American way."<
Exactly my friend!
just as the cotton and sugar cane industry survived without slave labor, the farmers of today can improvise as well.
I have some reletives who farm in North Dakota, (they use NO illegal immigrants!) and their tractors have air conditioned cabs with global positioning systems to guide them while they are running their planters. They even have CD players in them.
They run the planters all day and all night, until the crop is planted.
Two people doing the work in a day, what took hundreds of people to do in a week, a hundred years ago.
All the guest worker programs do is stifle moderization.
This article details that:
http://www.cis.org/articles/2001/back801.html
It wouldn't be difficult to find Americans to drive tractors like that --- and efficiency with modern machines is the real reason we're putting Mexican farms --- with all their cheap cheap cheap labor out of business.