The "quality" may be lower, but the average American car is more than good enough to serve its original and intended purpose.
I never buy cars to stroke my ego, to street race at night, to be crammed with electronics, to impress the neighbors, etc.
I buy with relibility in mind, and have yet to be disappointed. I have never had a major failure of any of my cars, not once did they fail to serve the intended purpose of getting me to and from my destination safely.
Worst car we ever had is the 2000 Impala that we still have. In one year we replaced a power window motor, the heater core, and the ignition switch. Except for the leaky heater core, none of the failures caused the car to not funtion correctly. The ignition switch problem only caused the AC and CC to not work...otherwise, the Impala is a great car.
CU blows minor failures out of proportion.
Granted, SOME american cars suck, but most are more than adequate. If you are willing to support car makers overseas in favor of those here in the USA, go for it...but don't be surprised when you lose your job to foreign competition...
As for which industry, I can't say, but I do have an opinion on commodities.
Water and Food are going to become an issue. Clean water is getting harder to find as we are polluting our ground water with gasoline from leaky fuel tanks and other chemicals, and enough water for food crops is already an issue in California...