There already exists the European Cockpit Association which is an umbrella organisation for all the EU countries individual union:
European Cockpit Association (ECA) - eurocockpit.be
They've got a few campaigns going at the moment, if they're successful maybe we could see them step up a gear and start to really tackle the problem of 'Social Dumping' we are witnessing daily.
Another solution would be for each individual country's 'Authority' to stop being a toothless paper tiger who is quite happy to hide behind archaically worded regulations enjoying index linked civil servant salaries dreaming of a time their final salary pensions kick in and actually stand up and force airlines to adopt minimum wage, working time directives even basic working practices our ground based brethren take for granted.
The 'Authority' tells us that they regulate the industry, but from what I see at the moment its a like the wild west out there. Even Adam Smith or Henry Ford would wince at the way some airlines operate.
Bitter moi? No, but I do believe in fairness and I am loathed to sit back and watch two airlines (one Orange and one Blue) screw hard working, enthusiastic people into longterm financial hardship for the sake of a few sovereigns.