Sure, but before we overhaul the system in the United States (3% of population malnourishment), let's overhaul the system in countries where the population malnourishment is above 15% and bring them down to less than 5%. (http://data.worldbank.org/indicator/SN.ITK.DEFC.ZS?most_rece...)
The mode of production in the US might seem highly inefficient if you have not lived in a different country for a prolonged period. But I can assure you, it is incredibly efficient.
historically speaking, revolutions are a crapshoot.
forward looking, revolutions are a crapshoot (often sold by people not acquainted with history).