The US produces foodstuff in such obscene surplus that the real effect of famine won't show up for some time.

What we have to worry about is the day some investment asshole discovers he can "disrupt" the grocery store business by shutting down all the ones in the poor neighborhoods and tripling prices in rich neighborhoods.

Then a profit spike finances a cascade of vulture capitalist consolidation and price explosion. Meanwhile, mass media will insist it was the consumer's fault for eating unsustainably, and the responsible thing to do is yell at brown people for being too fat.