Abandoned State Dept Contractor Aircraft  

Many Embassies were forced to be evacuated by helicopter. Not just the one swarmed by refugees in Saigon.

The swarming of Kabul airport made the swarming of the US embassy in Saigon look like child's play.

Maybe 2 dozen made it on the last helicopter off the roof of the US embassy in Saigon.

Hundreds made it on to the last American cargo jet.

A few Helicopters were pushed off crowded decks of Navy ships leaving South Vietnam. 
Dozens of helicopters were left behind for the Taliban to use in hanging people from along with whatever atrocities the Taliban is infamous for.

Many other examples make Saigon look insignificant to the mess made by the current regime.