I would nuke them back beyond the stone age. One village at a time, one week apart, until the rest marched naked to surrender.
The problem with threatening to bomb Afghanistan back to the stone age is tantamount to threatening Br'er Rabbit with being thrown into the br'er patch.
IMHO, the way to win hearts and minds in Afgthanistan is to make the people fear us worse than they fear the taliban/al-qaeda. If victory is the objective, we need a Sherman's March strategy, but if we're not willing to commit the manpower, resources, political will and national courage to do that, we need to pack it up and bring it home.
You got that right!