Is it a true valid economic argument that buying products "made in the USA" helps the U.S. economy?

Apparently everyone is against protectionism and says that it's counter-productive and protectionist policies don't work. But what about buying products made in the USA instead of shopping at Wal-Mart? If everyone did this (or at least a lot more people did) wouldn't it benefit the US economy and... show more Apparently everyone is against protectionism and says that it's counter-productive and protectionist policies don't work.

But what about buying products made in the USA instead of shopping at Wal-Mart? If everyone did this (or at least a lot more people did) wouldn't it benefit the US economy and help bring manufacturing jobs back and lower the 10 and 15% unemployment rates we're seeing? Wouldn't creating a market for US made products be beneficial to our country?

Just a thought. I know it seems like common sense, but economically, academically and practically speaking what is the economic argument for or against this?
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