Earlier quoted context omitted.
Republicans have long said that the federal government is structurally incompetent and unable to effectively administer a large country. They made a convincing argument with their performance in Iraq and Afghanistan, and I doubt Russia would have been much different.
That was a very different situation, those were states that were militarily invaded and then occupied by American forces, who were involved in reconstructing countries devastated by war.
Look at the people today who decry chinese investment in the US economy? I'm not even saying those people are wrong.
All it takes is for one person or group in the country to poke us enough to the point where we feel the need to strengthen our security posture there (read: add more troops) and then some terrible situation like Abu Ghraib completely destroys any credibility we have with the local population and it just spirals into disaster.
I simply have no faith left in our government's ability to execute even a completely peaceful operation like the marshall plan (and similarly what we did in Japan).