Now you have tried to analyze this war into US favour, here two questions arises
1) This war has no direct effect on US not even economy recieving any damage then why USA forcing everyone for dialogue, specially relating with US exit from A-tan?
2) Taliban or Afghans have long fighting history, they can continue to many more decades and now even Russia and China seems to be more active in A-tan, and the recent rise in attacks reflects the increasing arm stock of taliban, on other hand, Afghan national militia (I won't call them army as it disrespect the term army if I associate it with them) continues to recieve support from U.S, so the question is, what will be the best end for this conflict?