This is not a one-way sacrifice from poorer countries. Richer, importing countries like the EU, East Asia, North America will pay more for agricultural products

This is not a one-way sacrifice from poorer countries. Richer, importing countries like the EU, East Asia, North America will pay more for agricultural products if bans like this are imposed. We need market mechanisms that encourage countries to respect global commons (ie. the capacity of the Earth to absorb our CO2 output). Countries that do not respect that should be removed from global markets. We cannot rely on individual retailers, importers, or customers, because they will just orient towards the lowest price, without consideration of environmental impacts. It is clearly a responsibility of Governments to act.