We are not at war with Russia either. Without the Ukrainian people, Russia would have won. Our aid definitely helped, and might have been essential, but the Ukrainian's people effort was absolutely essential. If they had not been willing to fight for their own survival, the war would have been over in days.
We are saving money in Ukraine. By making clear that aggression will not win easily, many countries will be less aggressive. That aggression would have cost far more money, and probably far more American lives. We should be grateful to the Ukrainians for fighting the war to end agression.
It really would not be. You are a fool if you think it would.