I'd be curious to know how many jobs have been "shifted overseas" by these companies. U.S. manufacturing output is higher than ever, and there are more people in the U.S. working in manufacturing jobs today than there were 20, 30, or 40 years ago.
Very few Free Traders dispute jobs are being lost to other countries, they just claim new ones are being created here to replace them. The problem is many of those jobs are lower paying and we have a tremendous illegal immigration problem taking many of those new jobs and depressing wages. It's the combination of the two that may prove fatal for the GOP if not in 2006 then 2008.