The value of smaller gardens are not measured in the produce harvested but the knowledge sowed. Many are federally funded at schools, community centers, or local libraries to serve as outdoor classrooms.
That's great, but they cannot feed a nation 100% or even close for long periods of time.
> The value of smaller gardens are not measured in the produce harvested but the knowledge sowed
No, it should be measured in terms of amount of input relative to the amount of output. It’s almost never the case that small farms is going to be more efficient—not only cost wise, but for the environment—than large scale farming.