You are like a dog with a bone. As far as I have read anywhere and the available evidence, the CIA did not provide funding, training, or material to the Taliban, and the CIA was specifically pushing to support the Northern Alliance against the Taliban. The ISI backed the Taliban before and after 9/11, both to attempt to have some control over them, and to counter Indian attempts at influence through funding the Northern Alliance. ISI’ funding and support of the Taliban in direct contradiction to US efforts is one of the reasons US-Pakistan relations are severely damaged.

None of that is to say the CIA misadventures in Afghanistan before 9/11 were somehow harmless. They handed over briefcases of cash to Jalaluddin Haqqani, who became a key ally of the Taliban and the Haqqani Network he created ended up supplying explosives to the Taliban and lauching highly successful suicide attacks on US forces in Afghanistan.

I know people like simple narratives and having someone to blame, but the situation in Afghanistan over the past 40 years is not simple and is not because of the actions of just one country.