It will end up costing more than just using regular unleaded gas, but if you don’t mind paying more, I like the idea of supporting US farmers instead of supporting the oil companies. I say go for it.
The high food prices we pay are only minimally affected by E85 use. There are other causes for our high food prices that are not going away. The prices we are paying for food are the result of several factors that all converged at the same time. E85 is just one of them.