Earlier quoted context omitted.
700 million people in the world face food scarcity at any one time. The world is overpopulated and its resources strained by the existing 7.4 billion humans (CO2 budget, natural resources reserves, etc).
Practically speaking, we make enough food for all the humans on this planet, and we'll likely be able to until at least 10 billion people exist. The reason that folks face food scarcity is a distribution problem, not a production problem. We don't do a good job at making sure people don't go hungry, even in the US.
https://www.theguardian.com/environment/2019/sep/06/phosphat...
https://www.nationalgeographic.com/science/article/sea-runni...
https://www.siwi.org/latest/the-worlds-natural-aquifers-at-r...
https://www.nationalgeographic.com/science/article/groundwat...
https://www.idtechex.com/en/research-article/the-meat-indust...