Personally, I don't see the issue with a UK airline providing jobs foremost for the citizens of the UK? Perhaps if each country wasn't fighting to avoid a recession we could afford it, but why waste an opportunity to help our own economy?
The problem with your approach is that the airline industry is an international industry. It would be very interesting to compare the number of non-UK pilots working for UK airlines and the number of UK pilots working for non-UK airlines. I think you will find the balance in favour of UK pilots overall.