The fact that this person thinks the Afghanistan exit was a success should have let you know he is a crackpot well before the last sentence.
US bombings convinced the people to them and made them into state protecting freedom fighters, which they initially were not.
What you resist, persists. What you fight, grows stronger.
But the next 50 years of funding they received came from money we spent prior to us leaving. Certainly we could have done a better job with the withdrawal (to put it lightly), but it's nonetheless good that we aren't still spending money there.