I'm actually with you on that. Attacking a civilian building during a war is a war crime, even if that building is tied into the war effort (e.g. farms). This isn't anything new; plenty of generals have forbid cutting trees or burning farmland thousands of years ago.

However, sanctions have proven a very effective alternative to war. It's a way of punishing warmongers without anyone getting hurt too badly.

I don't know if it's ultimately effective, though. Something like this pushes both China and DPRK into Russia's corner. And then before you know it, you have WW3 on your hands.