Put bluntly, there was no easier way to leave. Staying would only solidify the notion that the US is trying to turn the area into a puppet state or colony, which would spark even more conflict. This sort of thing is sad, but it is an issue for the larger international community.
I don't buy this one, sorry.
and look at this:
“We gave them every chance to determine their own future. We could not provide them with the will to fight for that future”
this was a disgusting lie, and you know this.
Biden did messed up, and the Americans either are happy (the red ones) or are trying to explaining the unexplainable (the blue ones), and they are doing this to the point that they are blaming the Afghanistan people for not fighting men armed with rifles that just the devil knows how ended up there (but we know where were made).
Absurd decisions can't be painted as unavoidable decisions just for the sake of defeating Trump in a election that is years away. You are being just like Trump people doing that way. I beg you, please reflect. People is suffering right now, they are not Americans, but I ensure you that they bleed and they feel pain.
And lastly. You said that it "is an issue for the larger international community". No it is not.
Anyway, now it is too late, I just desire the best of luck to those who stayed there (specially the girls), and for those who will flee and fight for being accepted somewhere else.