I believe US farmers export 20% internationally. And most of the farmers I know have told me only a small handful of farmers are in that group of exporters, the biggest players. The "little guy" will be fine.
20% of farmers are big enough to skip the wholesalers and sell internationally. The other 80% sell to local wholesalers to sell internationally. And even though most wheat et al is consumed in the US, a significant amount is exported. A small drop in demand can have a massive impact on price.
