I didnt state it was too powerful. Nah, Russia is relatively weak. I just stated that it is a superpower. And it is. Either by nukes or whatever. Definately Russia would be heavly outgunned when they would go up against the West. But the manpower and the nukes they posess is sufficent enough to create a good number of damage and casualties. Which obliviously noone wants. In this case they would get their way.
Ever since the end of WW2, wars have been replaced by a game of chicken due to nuclear weapons, and military power matters less than it did before. I think the reason the West would not intervene (or just help covertly) in Ukraine if Russia did start something is because the West doesn't care that much about Ukraine.