Maybe it's too malthusian of a view but I think a big issue to contend with is that some people should not be as populated as they are and there's no push against it from either government or the dominant economic systems.

And yes that includes the controversial poor population hotspots of africa that have grown super rapidly beyond multiples of what the land can provide

But also just the same places like arizona with comparatively rich folk growing the urban desert sprawl

Is shipping food there the correct solution? For war, an ostensibly temporary condition, by all means ship the population food. But if an area is already overcrowded beyond what the land can sustain (due to climate, soil quality, or population density) then is it productive to further bolster the population? Seems a human catastrophe in the making, supporting population growth in an area where the land can not supply enough food.