I’m all in favour of this for climate change and animal welfare reasons, but I don’t see how it’s a national security concern in e.g. Europe and America, given they already encourage farming overproduction specifically because food is so important, and that almost everywhere could already be more effective in how many people a given unit of land area or fresh water can support, both by encouraging vegetable-based diets and separately with more poly-tunnels, greenhouses, and aeroponics.