as Obama was leaving office, he tried to get more special visas for those vulnerable Afghanis...almost immediately upon taking office, Donald Trump shut the door...
It takes time to process these people,...criticizing Biden for not addressing four years of inaction is very short-sighted...especially, when the Trump admin set a May, 2021 official deadline with the Taliban (and w/o Afghan government participation)...
The more you look at how this all came about, the more the spotlight needs to shine on the former President.
Link: https://www.npr.org/sections/thetwo-way/2017/03/10/519646252/afghans-who-worked-with-u-s-forces-told-they-can-no-longer-apply-for-special-vis