If a business is run illegally and it needs to be shut down then be it.
The mafia also employs thousands and has a turnover that exceeds that of entire countries but no one would hesitate a minute to shut them down.
Afterall if FR carries 80 million passengers then the next day some else will give them a lift, it won't be 80 million anymore (I'd say 1/4 of them shouldn't travel anyways since they are a disgrace for the entire human kind) but at least they will be flown from A to B according to basic moral principles.