Look, I’m about as anti-war as they come. But in the capitalist neoliberal rules-based order, war happens constantly all over the world and the best we can do is enforce the provisions of the Geneva Convention. No good will come from equating war generally with war crimes right now. There will be a point where we can call war a crime against humanity, but the Overton window isn’t there yet.
I’m not making some kind of strawman argument. I’m correcting the OP, because attacking civilian infrastructure is a war crime. If Russia starts using chemical weapons, should Ukraine start too? If you have any sense of ethics, you’d say no.
Congratulations, you’ve successfully justified a war crime.