I don't think I agree with you on UK students being motivated, I actually hear some quite scary stories from people who have worked in the UK. Besides, people everywhere can have motivation problems when it's high school, I mean, it's mandatory and those kids just want to go out and play XD
On topic again: yeah, I suspected it would be difficult since most job offers have "native speaker" in highlighted capital letters in their descriptions. Even though I personally think it's rubbish that educated non-natives are inferior to uneducated natives, I'm afraid that won't make any difference....