None of Putin’s successors want to inherit his war. And the oligarchs want it ended.
Your ignorance is showing.
What Vlad miscalculated is that are plenty of nasty old bastards in the USA and NATO who worked against the USSR in their prime military and intelligence careers. They are still pissed off and still have scores to settle with the Russkies. These old bastards still have the younger ones they trained. They still have their contacts. They are making sure that Ukraine forces get satellite and airplane intel for precise targeting by HIMARS etc. And in real time.
This is what is killing the Rus as their ammo dumps get blown up every day and get me howling with laughter. No Rus ammo=no Rus war. FOAD Rus and go home.