Here's what he would have done. As Taliban retook Kabul, all American personnel would have been immediately evacuated. To hell with the SIVs. I don't know that this was the right/wrong path, but that's what Trump would have done based on his track record. He abandoned the Kurds and the Iraqi SIVs. I'm not sure what specific promises were made to the SIV folks. Also unclear how you can possibly vet 10s of thousands over night. Given what I know, you have to imagine there are terrorists amongst the evacuees. Lots of young guys without documentation from the pics I saw.