What does one do if in a desert, with nigh unto no food available and conditions oppressive? MOVE.
Most of these "food deserts" are that way because harsh socioeconomic conditions (to wit: disinterest in quality products, coupled with prolific theft) made commerce in suitable foods untenable. Complain about "food justice" all you want, but the next meal is just a few hours away as is the next bus ticket. Demanding someone provide a balanced meal is both unproductive and unfair, so figure out a near term solution.
BTW, some of us are trying to help by finding what is viable at low costs in nearby stores. Strange how many deride the attempt to help.