Wow - a lot of hysteria going on in here. First - we commited to taking Afghans who worked with the British military months ago, the speed of the Taliban has taken us ALL by surprise including the Americans who were by far the dominant presence in Afghanistan. Now, how easy that will be to do at short notice may be another matter. As I understand it, the Taliban are definitely letting Westerners get through to the airport. Of course Afghans who wish to be extradited have not helped themselves by burning their identity papers - how on earth are we supposed to know who we have the biggest obligation to take?
Second - the only experience we have of the Taliban in government is 20 years old, at the moment the elders of the Taliban in Kabul are making the right noises about women still being allowed to work and study (within the framework of Islamic law). They have to work with the West as Afghanistan is one of the poorest countries in the world and they will need our help - not just for the current humanitarian crisis but also for infrastructure and trying to get back to some kind of normality.
I am by no means lauding the Taliban as saviours - however nobody has ever been able to "conquer" Afghanistan, the Russians failed just as the western alliance has failed. We must understand that we cannot impose Western style democracy on countries who are as backwards as Afghanistan - it has failed every single time we have tried. Except, of course, for countries we colonised - but that is a dirty word in the 21st century.
Whilst I disagree with Joe Biden's ill-advised policy to speed up Trump's promised withdrawal of Western troops, we have to understand we could not stay there indefinitely. We were there for TWENTY YEARS and frankly not much has changed. For the Labour critics - we could NOT stay there without the Americans as we shared equipment with them. We did try, apparently, to get some support in Europe to ameliorate the withdrawal - no prizes for guessing that the cowards refused, same old same old when it comes to Europe.
We need to get out who we can as quickly as possible, then we need to enter into discussions with the Taliban (even if we have to hold our noses to do so) about the future of Afghanistan. This is a time for realism rather than hysteria.