According to Google AI: "insanity refers to a state of severe mental illness or derangement, often used in a legal context to describe a person's inability to understand the nature of their actions or that their actions are wrong."
Your headline seems extremely accurate. His only goal is to continue a war that cannot benefit Ukraine in an measurable way. He has no apparent concern for reality or how he literally has no power position from which to operate or bargain. He appears to be utterly delusional at this point and is only an impediment to peace.
I would not be surprised if he soon meets with an "errant" drone missile.
My only question is was he always an imbecile or is the cocaine?