We are a consumer nation because we are more prosperous than our peers. It's the same reason you buy your food at a grocery store.
Generally, the clamoring for domestic production comes down to: 1. Employment. But because we are more prosperous, our employment is aimed elsewhere. We have jobs for people that are less dangerous, less manual, and better paid.
2. A fear that without domestic production, we're at a strategic or military disadvantage. But it's not that we _can't_ produce in an emergency, we can and have historically (see: oil in the 1970s). What protects us most is hegemony, which is threatened by things like across-the-board trade wars.
3. Nostalgia for the good ol days. Look, if you want to work in a factory, we have lots of them here, still. Nobody will stop you from putting on the hard hat. But in all likelihood you have a less stressful, less dangerous, and better-paying job today.
There really isn't an argument for this. Our trade was - as all trade is - mutually beneficial. Right now we're pushing the glass to the edge of the table when it was perfectly fine where it was.
One other important note: there are things we literally cannot produce domestically due to lack of natural availability (food products, certain textiles)
How can a "prosperous" nation sustainably consume more than it produces?