dont forget about the sugar tariff, although thats aside the point.
organic/nom-gmo products will always cost more. The yields are significantly lower than their biotech counter parts (although Monsanto round up ready crops have been in the news lately for giving way to super weeds and insects, but Monsanto will respond). Its not just the growth of these foods but also the storage, transportation, processing, labeling, etc has to comply with NOP regulations. That all takes a lot of time, and therefore costs a lot of money. I know from experience processing organic food is a HUGE pain in the ass.