I know people are either blaming Biden or Trump or Bush or whoever for this disaster, and while I agree this is the fault of multiple people, going into a 20 year war that was only going on for money and power, and it shows since we didn't even teach the afgans shit in the 20 years we were there, the main reason why people place the blame solely on Biden is because he said so himself:
HE HIMSELF said that whoever is president in the time of a crisis needs to take personal accountability, he said it, he needs to stand up and eat his own words. So yeah, maybe it's not squarely his fault, even though he did have a hand in it in the past and how he screwed up now, but since he said the president should take personal accountability, then he should do it and take the full blame, if not, we'll call out his old tired add on his own hypocrisy on blaming literally everyone else but himself. He's in power, it's his administration, no one elses, so yeah, going by his own words, it might as well be all his fault considering the multitude of things he could've done to make this go way better but didn't, from evacuations to leaving our own damn equipment behind for the bad guys to use. Yes, we did own that equipment, and we just left it there for the Taliban to take it, that's a fact. I mean, if he wanted the other people to share the blame for their part in this situation now he should've never opened his old, saggy mouth and said "I'll take all the responsibility as president."
Remember, to be successful in life, always say one thing but mean completely something else.