We also should be considering that there will be this giant country with a giant military after Putin is gone.

We seem to have no concept right now that there is a level of suffering and alienation we can impose on the average Russian that will cause a large chunk to become highly radicalized going forward. Who are those people going to want as a leader then? It seems like so many right now are living in a fantasy world that the Russian people will have some kind of French Revolution because of sanctions, get rid of Putin and by magic some Western friendly Russian government will emerge.

It is like that same thinking that went into hitting Germans with crippling reparations for WW1. In retrospect, maybe that wasn't the best idea..