Actions have consequences. One of the consequences of our trade sanctions is to increase wheat and corn prices significantly. There are currently Africans who are on the brink of starvation and the increased food prices will increase starvation?
Is our current position “It’s okay if 1,000,000 Africans starve if we can prevent 100,000 Ukrainians from not dying in the war”?
Are there models that tell us how much people are likely to starve as a result of our actions? Are there wheat futures that we can use to tell us future wheat prices and economic models that estimate how many people will starve?
I’m not quite sure the increase in wheat prices is entirely an effect of our sanctions. Ukraine is a big wheat exporter by itself and its expected drop in production may be the main cause of the price hike...
The purpose of the sanctions is not to prevent Ukrainians dying. It is to prevent Russia taking over Ukraine.
An obvious way to prevent both the collateral damage of sanctions and any Ukrainians (and Russians) dying from the war is for Ukraine to immediately and unconditionally surrender and for all its allies to support that. If saving lives is a reason to not impose sanctions, would you consider it also a reason to surrender to this and all other aggression?
One factor not mentioned here is the fact that low global food prices are one of the factors keeping many developing nations in poverty. Many of them depend upon agricultural exports in order to buy other goods that can improve their health, productivity, and lives in general.
The superficial principle of “high food prices = fewer people able to buy food = starvation” doesn’t seem to be as clear in practice as it appears in a paragraph of text. There is a good argument that much of the starvation and malnutrition in the world is not in spite of low global food prices, but partly because of them.
Your assumption that the end goal of sanctions is ‘save Ukrainian lives’ is incomplete. If the end goal of sanctions is to prevent World War Three by deterring Russia from invading the Baltics or other NATO countries and/or deterring China from invading Taiwan, then the trade-off looks very different. Because preventing WW3 is a goal that justifies very large sacrifices in human life.
Yes, we should make an exception in the sanctions for selling food. Probably only some basic food, i.e. not alcohol or caviar.
(I admit I have no idea how much food Russia sells to Africa on an average year.)