I make a comfortable living and I have been known to pay a bit more for American when I can on items I don't replace often. Poor economics, yes, buying American and spitting in their faces, rocks.
An honest answer.
For what it's worth I always try but it really depends on the product. It seems these days American companies use overseas labor while overseas companies use American labor i.e. Nissan, Mercedes, Honda, etc.
Also, overall, I think the concept of manufacturing as a source of high paying jobs was going to always dwindle regardless of factories overseas. Technology changes alone have eliminated hundreds of thousands if not millions of workers from manufacturing.
Watch the Food network when they are showing how some food product is mass produced. All those machines used to be peeople. All kinds of economies of scale point to why people aren't used any longer.
I'm also biased in that I worked at Whirlpool in Ft. Smith, AR two summers during college and it was the most boring work I've ever done. I couldn't imagine doing that for years because I didn't educate myself enough not to have to.