People can be banned from airlines but they get banned for the same reasons they do in the US, like getting drunk on the plane and punching someone. Or like how the US bans people who owe child support from getting a passport, judges in China are allowed to ban people with unpaid child support or big enough unpaid fines from state owned airlines until they pay.

He was drone striking in Yemen and Pakistan, he wasn’t replacing soldiers killing people, drone strikes were a way to kill extra people in places where he couldn’t send soldiers.