1) The reason people can't get to the airport is because the Afghan army/police were in charge of keeping order in the cities, including Kabul. US troops had nothing to do with that. We never had the capacity to do that (entirely different skillset than attacking enemy positions).

2) Therefore, keeping our troops there would not have improved the ability to evacuate the people who needed that even if the troops were still there.

No one is happy that such is the situation -- including the Taliban, who also don't have those skills and are worried about being blamed for attacks on evacuees. Their troops are not trained for maintaining civic order, and (in an awkward admission) admitted that their troops "may" have done things which they should not. That's expectable: it takes training, plans and procedures to maintain civil order. Regular troops are not trained for it, and in fact life experience (think: PTSD, for either side) makes them even more unsuitable. Troops in the field, out of life-saving necessity, have 2 solutions to problems: shoot it or blow it up. Neither works well in maintaining civic order.

>>>>CNN 1206 EST today There have been at least two explosions near a gate at Kabul's airport that "resulted in a number of US & civilian casualties," the Pentagon says.
>>>>UK Defense Ministry says no UK military or government casualties were reported following blasts
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>>>I would of been nice if they evacuated the people BEFORE withdrawing all the troops - so this was a blunder -- and we seem to have endless blunders. Trump abandoned Syria and evacuated zero of our Kurdish allies and handed over our military bases to Russia. We seem to have poor track record sense hmmmmm WW2?
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>>The Allies were never in charge of policing in Kabul or the other cities. The Afghan government had that control.
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>>The prediction from the Pentagon was that the Afghan army would be around for a minimum of a year. No on, on either side of the aisle, said that was B.S., which it turned out to be.
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>>So what would have been nice, keeping our 2,500 of so troops in Afghanistan, would have made no difference.
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>I wasn't saying we should stay there -- I was saying that we should of done the evacuations of Americans and refugees and such BEFORE our our troops left instead of what is happening now. Now people can't get the airport because there is no security to get them there -- that is stupid.