Russia gets half of its income from oil so by destroying Russian oil refineries and infrastructure it would severely harm their ability to fund the war
Also the Russian are already burning through it's gold reserves and reserve foreign currencies
As for the European members of NATO and the United States are currently breaking on the issue
Due to the republican party and the American right wanting the United States not to be involved in the Ukraine
That is going to be one of Russia's biggest success is turning the American right into a pro Russian force within the United States