Ukraine is dead. No reason to pour more of our money into a corpse.
Ukraine has natural resources valued at #4 in the world.
Stopping Russian aggression and denying Russia a stronger monopoly position on oil and gas and grain and weapons and steel is definitely in American interests.
Russia has already caused 8 million refugees. How big a humanitarian crisis does it have to be before you’re willing to lift a finger?
The lessons of WWI and WWII is that you need to stop aggressors early. If you don’t, you end up fighting them when they are stronger. We have a chance right now to fight them without even sending any of our own soldiers, just weapons. This is fighting aggression on the cheap.