Many commentators and experts when talking about Ukraine are saying it's a war crime or it's an unjust war, but leaving it at that.
They're not saying anymore against Russia's actions. They are all putting it in context of the situation the West has created. Then they add again their line about it not being a just war, or about it being a war crime.
They liken the war, being a pre-emptive war, to the US invasion of Iraq, which they also say is a war crime.