First, al-Qaeda and the Taliban are 2 separate entities. Originally Posted by markroxny1st, they are not "entities" .. the Taliban are "a political party" that controlled Afghanistan in the 90's and into the 2000's, with whom there were negotiations in this country for their cooperation in constructing a pipeline across Afghanistan and who sheltered "al-Qaeda" who were (and are) a movement made up of terrorists who the U.S. intelligence community had trained before they were renamed "al-Qaeda" ...
This administration, by leaving Afghanistan, pretty much gives up the fight with the Taliban and the existing Afghan government must "peacefully" co-exist with the Taliban to avoid extensive bloodshed. There is a distinction between defeating the Taliban and the Taliban stepping back to avoid clashes with NATO forces until the NATO forces have left the country.
Until the Taliban "shielded" OBL and his band of terrorists .. and gave them "comfort" ... the U.S. was "getting along" with the Taliban and pretty much ignoring their atrocities against their own people. It will just pick up after we leave, except this time they will know, and their own people, that if things get really rough we will not step in to put a stop to it ... just like Syria and every where else ... Iran?