As a fully fledged antipodean working as a pilot in the UK all that I can say is any brit wannabe has just as much chance at the job as we do, the only reason one of 'us' gets the job over one of 'you' is that we will be better qualified. If we aren't then we won't get the job. I agree with Luke Skytoddler, you have a lot more to worry about than the small, yes small percentage of non british pilots.
Oh, and just one other thing:
Get over it, get over it, get over it, get over it, get over it, get over it, get over it, get over it, get over it, get over it, get over it, get over it, get over it, get over it, get over it, get over it, get over it, get over it, get over it, get over it, get over it, get over it, get over it, get over it, get over it, get over it, get over it, get over it, get over it, get over it, get over it, get over it, get over it, get over it, get over it, get over it, get over it, get over it, get over it, get over it, get over it, get over it, get over it, get over it, get over it, get over it, get over it, get over it, get over it, get over it, get over it, get over it, get over it, get over it, get over it, get over it, get over it, get over it, get over it, get over it, get over it, get over it, get over it, get over it, get over it, get over it, get over it, get over it, get over it, get over it, get over it, get over it, get over it, get over it, get over it, get over it, get over it, get over it, get over it, get over it, get over it, get over it, get over it, get over it, get over it, get over it, get over it, get over it, get over it, get over it, get over it, get over it, get over it, get over it, get over it, get over it, get over it, get over it, get over it, get over it, get over it, get over it, get over it, get over it
