That that up with the government of those nations. It means absolutely nothing to the subject of how people elsewhere should eat. Cattle grazing is very efficient in some places.
Consumers are responsible for the demand they create in the market. I don't trust government to fix this problem. Capitalism will fix it.
It is fixing it. They mostly grow sugar cane, and with selling that internationally make enough to import other goods. They also grow some produce and let cattle graze.