The Taliban were always going to win, but were willing to work through a structured deliberate peace process with Trump that would result in a photo finish at Doha with both parties shaking hands and future mutual US-Afghanistan cooperation.
When Sleepy Joe became president, he didn’t believe the assessment that a Taliban takeover was inevitable, decided to deviate from the peace process, and believed that if Ghani and the Taliban fought it out in the battlefield, the ANDSF would obviously win.
Biden sabotaged the peace process, encouraged Ghani to have the war, resulting in the bloody devastation to Afghanistan that Trump attempted to prevent.
Biden and Ghani asked for war, so the Taliban delivered it.
Whether you believe it or not is your business, but if you believe it, never forget who did this.