Nan Moon, writing for the Capital Times, says that checking the tag on what you're buying for a "Made in America" symbol is patriotic:

One of American Joe's competitors has closed its doors. Not surprising news during this economic downturn, certainly, but definitely sad news and a sign of the times. What bothers us at American Joe most is that the company sold American-made apparel, as do we. So the influx of foreign-made goods has once again struck at the heart of our great nation and the American worker.

Let's put this into perspective. According to Blair Pethel (Bloomberg News, Pittsburgh Post Gazette), the U.S. textile industry lost 700,000 jobs between 1994 and 2002. Bureau of Labor Statistics projections are that by 2014, there will be a further decrease of 46 percent. Add to that Goldman Sachs' report that up to 1 million manufacturing jobs (textile industry included) have been shifted overseas since 2001 by U.S. companies and their suppliers.
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Do the math to see what's left, and it's a pretty scary statistic. Entire towns in the Southeast, once thriving apparel manufacturing sites, have all but become ghost towns. The mills have closed, leaving generations of families out of work.

So if you buy foreign made clothing, you're unpatriotic because you are putting someone out of a job.  I would suggest then that writing for the Capital Times is unpatriotic.  After all, The Capital Times just announced that it was going to be 100% electronic, joining a growing trends of newspapers in stopping it's paper offering.  That will help to put thousands of printing companies all around the country out of business.  How did Nan send in a proof of that article?  I hope it was by USPS, because if it were emailed, then Nan is contributing to the loss of jobs of hundreds of civil servants in the Post Office.  How unpatriotic!

The fact of the matter is that buying foreign made goods is not an unpatriotic act, and certainly it does not contribute to the loss of jobs.  Take the Capital Times.  By going electronic, they are contributing to new jobs in online advertising, a market which hardly existed a few years ago.  People need to build and maintain the electronic infrastructure as well.  That's more jobs.

The people who are put out of work in one industry have an amazing knack of not starving to death by finding other jobs in industries that never existed a decade ago.  Did we stop the development of the telephone because it would put telegraph operators out of work?

As it happens, Reason.tv just put out it's most recent episode featuring Drew Carey on this exact topic: