I'm confused... what was the decline in the auto industry? Last year was a record year in auto industry sales world wide, which would include Ford, and GM.
Apologize for any confusion. I understand that the auto industry is alive and well globally. My reference was Detroit specific with resulting job migration which had an economic domino effect...which I believe I stated was the beginning of the end. Time frame pre-dates the riots - but not at all am I discounting the effects of those and other events. Joblessness is a contributing factor to civil unrest...and all the resulting problems. That's not meant as an excuse - an observation only.
The civil unrest happened first, then joblessness.
The whole reason the car companies moved their manufacturing out of Detroit, was because of the civil problems, the work quality problems from drugs, and the union laws.
You seem to be looking at an effect, and calling it a cause. Joblessness happened because the drugs, unrest, and Unions. Not drugs and unrest, were caused by joblessness.