Good luck but claiming discrimination is a bit rich for expats isnt it?After all your not being discriminated against really are you?Just got a bum deal on your fleet allocation.

If there was an historical precedent of continuous cross over upgrades and you were denied based on your ethnic origin with the same grades as any one else, then maybe.
One guy already hit the nail on the head. Its a national airline in name only. It was created off the shelf, designed to provide its owners with prestige.The talent was bought in, as was the infrastructure. They own it and your ass. Your choice.
Its not a Grandfather proprietry airline .Its crewed by mostly foreigners on contract, open or otherwise with immigration specifically for that job. Its not BA, or Lufthansa etc. I
ts an expat gig guys with the same rights as the little brown fellah falling to his death from a new constuction site on 10 dollars a day.
To think otherwise is delusional.