As this article says, Zelenskyy has said this on Twitter:
We are entirely justified in our responses against Russia’s oil industry, military production, and those directly responsible for committing war crimes against Ukraine and Ukrainians.
Do you agree with him?
Maybe if Russia would just STOP then Ukraine would not feel the need to destroy them.
Here’s a better question: If Russia stops NOW is Ukraine justified in continuing agressions?
Follow up question: For how long?
Until they’ve thrown out the invaders.
Russia isn’t going to stop now. We have other things to ponder other than your fantasy question.