Europe

If they were right that sacrificing every able-bodied Ukrainian would grind down Russia, it would be barbaric and inhumane. (See: US senators crowing over how cheap they are inflicting losses on Russia, like non-Americans aren't people).

It's not even that though, they could throw troops at Russia until Ukraine is empty and they wouldn't have accomplished a whole lot. Even from the most cold and emotionless point of view, they're not accomplishing anything by doing this.