I'm not sure how your point holds water. You're stating that the Biden administration were presented with a situation when to took power where they were undermanned in Afghanistan, they chose to stay there longer and allow the Taliban and their allies more time to exploit their vulnerability? I'm not a military strategist, but that doesn't sound like a great plan, nor does it sound like a decision made by the previous US administration.
I find the language used around this interesting. You repeatedly refer to the peace agreement between the US and the Taliban as a surrender agreement, as I believe have others on this thread. The US and allies had occupied Afghanistan for 20 years and no sustainable regime had been successfully installed, and looking to the future it was not likely that there would be one coming down the line. Appetite for continued occupation had long since diminished within the populations of the US and their allies. The broad consensus at the time was that the continued occupation/war in Afghanistan had to end at some point. Therefore the peace agreement was drawn up and agreed by the US, their allies, the UN security council and the Taliban agreeing to a positive future relationship the an Afghan government that would be formed through internal Afghan negotiation.
To suggest the US and their allies simply surrendered is not accurate and possibly misleading.
A discussion on whether there should have been an occupation in the first place, or whether there should have been certain levels of trust between those negotiating the peace agreement is a different conversation. An agreement was made, it turned out that neither the US or the Taliban stuck to all the aspects of the agreement. Any deal agreed was only 'feckless' once either side failed to comply with the agreement, and in this case, the Biden administration moving the goal posts on withdrawal timeframes was a failure to comply with the original agreement.
I understand why people dislike Trump, I don't particularly like the man and there is plenty that can quite justifiably be levelled at him. But to misrepresent a situation in order to apportion blame or portray a narrative that is not accurate only weakens the validity of accurate information where blame can appropriately be apportioned.