" I'll throw your question back at you and ask what logical fallacies are being committed in this analysis of Greenspan's options and their inevitable failure, as well as the point made that Greenspan understands all this but refuses to admit it."
You supplied the logical fallacy right there. It runs something like this:
[1] My position is self-evidently correct;
[2] Green-Eggs-N'-Ham's public pronouncements disagree with my position;
[3] Ergo, Green-Eggs-N'-Ham is lying.
Point #1 is opinion masquerading as fact. Thus the entire argument fails.