Wouldn't this make the situation much worse for Russia, and therefore for him as well? The oligarchs will know who is to blame if Putin starts a war with NATO.
The oligarchs aren't the ones controlling Putin, it's the other way around. But yes, escalation with NATO is a very poor idea, given Russia's struggles with a single non-NATO country.
russians arent excited to go die in ukraine, but defending the homeland from NATO is a different story