To develop a green plane Airbus doesn't need random workers, they need engineers, scientists, students finishing their studies in the latest technologies... I would expect Airbus to hire people for that task, on top of moving engineers from other parts of the company.
Also, even the workers building the aircraft are skilled, often coming from a local aerospace school, the main places where they could find work are with Airbus' subcontractors, who won't be hiring either...
It's kind of interesting that one high tech firm I worked for had the corporate practice of ranking all employees and putting them into categories. The one category you obviously did not want to be in was the bottom 15%. It more or less meant if business was soft or there was some other setback to the business, chances were high that you will be shown the door. Thus it kept people on their toes most of the time especially if they were near the bottom.
So, I wonder how Airbus is going to decide which people to let go?
In France they will bargain with the unions, under pressure from the government. They will offer early retirements, packages for those who leave voluntarily, then packages for those who will be fired.
New Technology is the name we give to stuff that doesn't work yet. Douglas Adams