How is the Taliban winning.?

Were getting out of there because its a pointless war and a lost cause. How did the Taliban win? Were giving the countrys security back to afghan government so we can get our troops home and stop wasting so much money and hopefully rebuild our economy so we stop wasting billions. To me its a war that nobody is going to win the taliban is actually under the most pressure it has ever been in right now. Now if you bring up vietnam fine i'll let that slide because they did get the best of us but this is a different situation.