Are you saying there's a problem with that logic?
It's true that a large portion (actually, most) of inflation can be explained by the devaluation of the dollar.
Since the Fed took over in 1913, the Dollar has lost something like 97% of its value!
In fact, food products should be more expensive than they currently are. Only mass-production, cutting corners, and other problem areas have allowed food to get so cheap.
Remember my post (General Discussion) about 1907? Eggs were 14 cents a dozen, the same time that people made 22 cents an hour. That would be like a dozen of eggs costing $4 today -- but yet they only cost $1.80 or so.
Matthew