Answer:
No, (But it is all that is the only way out of world war3)
Step-by-step explanation:
If they take over Ukraine, Russia will now own all the oil and land that Ukraine uses to farm. It would mostly benefit Russia than the U.S
But if Ukraine gives itself up it can prevent a nuclear war between countries. Although it won't benefit the U.S, it wouldn't hurt it either. So the answer is no, it would not benefit the U.S.