Fair enough, forget the example. I'm saying that "just go find food" isn't possible when there is no food around, either because of a famine or because of deprivation, in the case of Gaza, or because you are past the point where you have enough energy to fetch and digest. So that argument doesn't hold not because of the example, but because your generalization doesn't account for the extremes of the human experience.
The only answer I can give you is never put yourself in a position to be taken advantage of by another. Whether that be your location. Your position. Your job. Or your ability to get food.
I sympathize. War is shit. I wish it wasn't but it is. Humans inflicting harm on humans makes no one happy. Keep your eyes open and your belly full.