Russia's existence depends on it's resources and few allies it has left
Then maybe Putin shouldn't be invading (Ukraine) and refusing obligations towards (Armenia) potential allies, and fucking his resource export by walling the country off the rest of the world.
everyone in EU is dumbfounded about this great American plan, tons of dead people, EU in recession, UA will be back under RU sphere of influence
Ukraine will not "be back under RU sphere of influence". The cost of that remains to be seen but your assessment of what EU "thinks" is absurd. Aside from Orban, the rest of Eastern Europe knows very well what Russia's sphere of influence means and that giving Putin (part of) Ukraine won't stop him from wanting part of Poland, Germany, or Portugal.
That's an existential threat.
Edit: Markets opened higher on a day Russia announced mobilization. If market is of any indication (as it has always historically been), no one is pricing in any serious escalation or mobilization of "western" economies to war footing.
Don't quit your troll farm to become a market analyst just yet.