They are not screaming about Russia because this argument is clearly (to them) at least partly caused by Georgia.
This is the real danger of moral relativism. Even when one side has obviously conducted physical aggression first the other must bear some blame because (obviously) party one must have had some reason to invade. Ergo, party two, in saner times known as “the victim”, must bear some responsibility.
Now, I don’t know too much about the local politics there. I do know there are genuine grievances between the two countrys based on sovereignty and race and economics. But those differences do not justify an invasion. Therefore that physical aggression has to be condemned.
And to further complicate this matter, the Georgians are pulling 1000 troops out of Iraq and have asked the US Air Force to fly them home so they can help fight off the Russians.