The worst part is that I can't see a valid "out" for Russia as a country from this.
Even if Russians, by some miracle, manage to pry Putin out of power, what then? Will anyone trust any of their leadership?
The level of sanctions on Russia is AFAIK unprecedented on a global scale, it's only been months and regular people are already feeling the effects. And if the sanctions go on for a few years, they'll be at Soviet Russia levels of living.