Although I am not a Cadet Candidate, I think I have a valid point.
I would encourage you to put your best foot forward, regardless if the odds are stacked against you. It doesn't matter your place of birth, age or what you believe in. Give them the opportunity to see the best candidate they can- YOU. After you will have given your all, it won't matter if you won or lost... you gave everything.
Having said that, I think the folks in recruiting are looking for the best candidate. Would you want to work for an airline who would choose you based on your passport rather than your potential anyway?
Godspeed, and best of luck.
C.B.