@xris,
Fundamentalism is a reactionary movement - and we have to ask 'what are they reacting to?'. The answer seems to be the western intervention that has systematically destroyed their civilization and way of life over the past few centuries.
And I doubt that the average Afghani would leave for the west "at the drop of a hat" - most, I gather, would rather stay in their native land and help make their nation and thriving culture once again, rather than abandon their culture. Remember, fundamentalist and otherwise, there is a deep seated suspicion and dislike for the west in that country - and you really can't blame them after everything the west has done to them.
We should not deny the sacrifice of the well intentioned, but we should also remember that their sacrifice is made for the sake of a neo-imperialistic aim. By and large, these men and women are duped into fighting this war, duped by nationalistic rah-rah and lack of opportunity at home. If our objective
was peace, then perhaps I would be more sympathetic to the interventionist cause - however, I do not believe that peace is the real aim. Instead, it seems to me that the aim is to bolster and secure power for certain nations involved in the operation, namely, my own nation. This is international politics, not a love in.