From an idealistic standpoint I'd say Russia is more confused than say Nazi Germany or Israel. I wouldn't be surprised if most of Russia's hierarchy is buying into this Ukraine invasion because the narrative is a good distraction for the people, but even at the top the narrative is pretty confused, like an expression of entitlement/ego. Nazi Germany's ideology wasn't confused but its objectives were (especially towards the end of the war). Israel's ideology is not confused either, but when they have completed the Palestinian genocide then IMO there's going to be a lot of "where do we go from here" thinking in their halls of power. Just like Nazi Germany, Israel knowing when to quit would be a really good idea, but just like Nazi Germany, they've got a taste for conquest and a sense of entitlement to go with it.
Russia won't quit either until they've been stomped for largely the same reason. I've said from the start of the more recent threat to Ukraine that the entire West should have lined up together to defend Ukraine and IMO we could have wrapped that conflict up by now; even against Ukraine (with equipment assistance admittedly) they've been throwing their resources into a meat grinder, imagine the catastrophe for the Russians if we were united in Europe's defence.
I just can't fathom the utter insanity of some of humanity to actually want conflict without good reason especially considering we have far larger problems to contend with likely even within my lifetime, but if it's war they want and they won't be convinced otherwise, then it's best to just get it over and done with as quickly as possible, and in a way that allows for rapid de-escalation. Perhaps if Putin / his cabinet was told that NATO has decided to help defend Ukraine, and for every month at this conflict goes on for, more resources will be sent to bolster the entirety of Europe against Russia, and to consider that if Russia spends all its military resources in a pointless conflict then who will be left to defend Putin and his friends from some other foreign invader or the pitchforks from the locals.