Illegal strike is a BS concept. You can't force people to work. As someone who dislikes unions, the workers should be able to hold out if they want to.
At the same time, with or without a union, employers should be able to fire anyone anytime that they want. If AC wants to replace their whole staff, go for it. Or they can choose to pay up.
The one thing that's clear to me is being a flight attendant isn't worth it. The women that do it could easily make more money as a waitress at a high end restaurant, even at the Keg. What a pain in the ass it must be to be a waitress in the sky. Such a shit job. They should be paid more, but it should be because no one would take the job in the first place unless it pays 80k guaranteed a year.