Dude, Estonia is NATO, so that is a very different story. NATO would definitely have to intervene. Not that I agree with that either, but I guess it is part of some contract.
You are the one who came up with the "borders of USSR" theory, and I agreed in that I couldn't care less if they took over Ukraine or some of the -stans. As long as they leave my country alone, which was not part of the USSR, it is none of my business what wet dreams Putin has. That is where I draw my line in the sand. So no, I didn't "backtrack".
The argument with Iraq is a valid one because what you are saying is essentially that the same rules would not apply to one aggressor (the US) and another one (Russia). So it is you, my friend, who has been consuming too much propaganda, I am afraid.