The answer is, they're starved, exhausted, hurt, incapacitated, suffering. There are millions of widows. And the Taliban has been burying these widows alive in mass graves. The soil is littered with land mines, the farms were all destroyed by the Soviets. These are a few of the reasons why the Afghan people have not overthrown the Taliban.
Trouble is, that's been done.
The Soviets took care of it already. They're already suffering. Someone already did all that. New bombs would only stir the rubble of earlier bombs. In today's Afghanistan, only the Taliban eat, only they have the means to move around.