As far as the Ag business goes I agree with what is said, the corporations call the shots...family farms, due to punitive tax policies (especially with regard to estate inheritances [that hit all hard, but especially family farms]) and growing (now predominate) corporate competition and the regulatory laws (crop rotation, ground water, wetlands, runoff) and crop insurance made it worse for a family farm, it is an oligarch run industry. Breaking that up and reversing course (valuable enterprise IMHO) would be harder than reviving manufacturing...but the latter would be hard as you would need to have strong right to work laws to keep the unions from shooting wages and benefits through the roof as well as more local accountability and less federal regulation (EPA, etc). Again, doable and desirable but one tough row to hoe. In the short term I think there would have to be some higher prices for consumers during the transition, some of that could be lessened with tax breaks and less regulation...I would expect a long ramp up period and then stability in prices as the reorganized industries balance out.