There's really nothing absurd about this. A country like Ethiopia consists of independent actors. Someone might sell food abroad to Europe, someone in Europe might decide to send food to Ethiopia.

There's really no way to stop this other than to outlaw all exports of food while starting to centrally distribute food in Ethiopia. This is neither productive nor would it reduce the amount of starving people in Ethiopia. In fact, it would increase the amount of poverty.

There are certainly poor people who have trouble affording basic goods in California. Still the solution is not to stop all exports of goods from California to Washington and vice versa. This would just make everybody worse off.