Are you arguing with a particular statistic or the idea that animal husbandry carries an enormous environmental impact? If you disagree with the stat but accept the concept, I can understand that. If a suspicious statistic invalidates the entire concept I put forward, I’m not so quick to buy that.
For forms sake, I decided to look at the exports of Somalia, where lots of kids are at risk from food insecurity.
https://www.nationsencyclopedia.com/Africa/Somalia-FOREIGN-TRADE.html
And from the UN
https://news.un.org/en/story/2022/06/1119862
I'm argueing against the link that's being drawn between animal husbandry and starvation / hunger. And especially against the 'fact' from your later link (the 82% of the world's starving children live in countries where food is fed to animals in livestock and then sold to wealthier and developed countries' part).
I won't go against there being a significant
environmental impact (although a lot of caveats apply there as well, but that discussion has been had here several times already), but that's a far cry from having a causal link to food insecurity. While this scenario is hypothetically possible in a far distant future, we're still quite some billions of extra population away from such a Malthusian catastrophe-level of population.
Specifically the case of Somalia is a really bad example to use to make your point since:
-It's essentialy 3 countries; Somaliland, Puntland (both de facto independent but unrecognized as such) and the rest of Somalia. So it's likely the animals are growing in the north (or for example in Ethiopia) and getting exported from there, while the south is starving (where Al Shabaab is active).
-In countries of economical collapse this can be a sad reality; whatever a farmer doesn't use for their own subsistence gets sold on the open market, and if there's no social welfare system or almost no state at all it will get sold abroad rather than getting donated within the country. If the whole world was vegetarian you'd still see the same thing happening, just with different types of food. Especially when abundance and shortage happen in different parts of the country.
-In Somalia the climate and geography is such that pastoralism is the norm. Most areas simply won't support intensive agriculture. In these kind of areas it's not a choice between herding animals or agriculture, it's a choice between herding animals and nothing. The same is true for some other areas in sub-Saharan Africa.
-The UN article even hints at this; a lot of the problems are a result of droughts that had a significant effect on livestock and their milk production.
But I can guarantee you, kids in Somalia are not starving because of European consumers consuming Argentinian beef, fed with Brazilian soy, or Dutch pigs fed with Ukrainian grain.
The only real connection you can draw there is that European demand for fodder (whether it's soy, wheat, corn or whatever) increases demand, thereby driving up prices, which can really create problems for extremely poor countries that are reliant upon the world market for food imports.
But that's a
very different claim than was made in article making the 82% claim. And though I won't fault the book too much because it was written a long time ago with the best of intentions, it's rather academical to talk about the impact of diet on global food scarcity when there
is no global food scarcity. It's always been local and situational.
People are starving in Tigray not because people eat meat, but because there's been a war going on and the Ethiopian governement has been trying to starve them into submission. People are starving in Yemen not because they're exporting all their camels, but because there's a war going on and other countries are trying to starve them into submission. People are starving in Somalia not because they're selling all their wheat to feed our cows, they're starving because there's been a massive drought killing off a lot of the livestock of the pastoralists that make up like 50% of the population and... yeah here it comes again: there's a war going on.
Fun bonus fact: there's also significant food insecurity in Afghanistan.... and a significant part of their limited arable land is still used for poppy production...
(And sorry if this came across as too much of a lecture. It's just a pet peeve of mine when people or organisations - regardless of how good their intentiosn may be - play a bit fast and loose with the facts, whether out of ignorance or on purpose. There's a very sad but long track history of 'well intended' interventions with bad results' because they were based on flawed premises. You can't solve a problem by manipulating something that isn't a causal factor.)