Maybe not a great single european union.
But why not two or three?
Or more. the important thing is that they have to become multinational.
EZY, RYR and the like pilots should unite, to fight the enemy with a chance of success. They don't need BA, KLM or Lufthansa.
In the same manner than the Euro was an error (we only know after 10 years), a union for both flag carriers and locos would be an error, too.
We need more effective unions and good lawyers.