I certainly agree with you. Most of it. But it's been 7 years.
What I see as tragic is that the worst case scenario is also the best case scenario, and that unless Obama is willing to turn Afghanistan into another Guam the outcome will be the same no matter what.
I see his motivation as being the same that kept the US in Vietnam, domestic political appearances driving an unworkable policy.
It's been 7 years, and the situation is worse than it was 5 years ago. That says a lot. If it can't be done in 7 years warfare it's not worth doing.
And the Russians are encouraging the US by letting the US transit men and materials for a reason.
Arf