Sorry but that is just nonsense. In the UK anyway, as much as certain people would probably want to do that it wouldn't happen as it is racist, derogatory, illegal & just plain wrong. BA & Virgin made British citizens redundant and there are many British airline pilots currently unemployed with non British nationals in the cockpit at BA & Virgin, I can guarantee that not a single pilot in those airlines would condone terminating their employment to make way for a native British citizen, it is just ludicrous and offensive! Once you have attained the right to land your in, doesn't matter your creed, colour, religion or background. If you have a work permit then you are legal and as far as I am concerned welcome.
I have found the racial undertones of this thread quite revealing but then after more than a decade in Hong Kong I am not surprised in the slightest.