Flame (suitable name) let me explain something bloody obvious to you.
If Aer Lingus removes its SNN-LHR service the public and business community may decide to exercise their LEGAL right to stop travelling with Aer Lingus on all routes.
Equally;
If Aer Lingus attacks its Pilots by discriminating against them in the hiring process for the Belfast base they are free to exercise their LEGAL right to withdraw their labour on all routes.
As a 'Free Marketeer' I'm surprised you don't understand the system better - everyone has rights and obligations in a business environment. One party breaks their obligation - they can expect commercial consequences. Whats wrong with that? Its the system you favour.