Gawd I hope that's sarcasm. The cash gets sucked right out of the country by Karzai & cronies, not to mention that bombs, rockets, artillery shells & bullets aren't really very nice presents. Afghanistan is a nation of widows & hungry children, thanks to our "help".
Afghanistan isn't really a "nation" in a sense we can understand. Yeh, sure, it looks like one on a map, but outside of the major cities it's pure tribalism, their version of "States' Rights" & it always has been. Whatever we do at the level of national govt doesn't get to the hinterlands, because the govt we set up is utterly corrupt, & because the Tribes don't respect them, anyway.
It's not that Afghanistan couldn't have been pacified, but rather that the Bushistas never really tried, never put the required effort into it, never really went out into the countryside with clinics, courts, police, roads, irrigation, engineering help to rebuild, tractors for villagers, never found out what the tribes need & want, at all. Never really went to the village elders to build their trust & cooperation. By the time Obama showed up, it was like trying to male an abortion into a live birth, or a steer into a bull...
You know it better than I do.