As a group, Americans take much for granted. We are far too insulated and protected from the real horrors suffered in other parts of the world. Even with the amount of social media and live imagery televised 24/7, we are so inundated with information and stimuli that nothing really takes hold and leaves a lasting impression. Changing habits around food waste that would actually impact global hunger would take decades, if not an entire generation of education.
I think a better approach would be to take advantage of the situation as it is--recognize that food waste is also a resource that can be recaptured and turned into a usable resource like compost, animal feed or an energy source.
Additionally, in a city like San Francisco, at any time of day, one can find any number of indigent people digging through garbage cans searching for aluminum cans or salvageable meals. I imagine many these people might be interested in turning this activity into regular employment for solid wages that allow them to actually live and afford dignified livelihoods.
The garbage in the public domain, the garbage from our homes, the garbage from our corporate and local businesses could be sorted with the help of this new work force. The food waste recaptured and directed to appropriate processing plants for repurposing.
I'd also like to see the waste collectors included in the processing activities further down the supply chain for further workforce development...but that's another issue.