To be quite clear, I'm not saying that only US goods need to be bought by Germans and Chinese. Those consumers are generally thrifty overall relative to their share of the global economy, and a global economy based on one country's consumer demand is simply not going to be a healthy one.

High German savings was one of the things that led to the Euro crisis, since you cannot simultaneously run trade surpluses with all your neighbors and then be surprised when they are running deficits as a result. In the same vein, Chinese over-saving has led to a domestic property bubble that is a house of cards waiting to fall apart once people can invest their savings in something that isn't an apartment.

As far as your point about global goods, I don't think that China, a place where hundreds of thousands of infants were poisoned due to illegal substitutions in baby formula, and people get told to look for reused "gutter oil" in street food, has a leg to stand on when it comes to food safety.