Maybe not all of them.A friend of mine is Korean and is trying to get her son into the country (she's a US citizen,he isn't). He's an outstanding kid...he grew up here...his English is flawless...he's a kid that would make a damn fine citizen (I met him during my visit to Korea).
He can't get in. There's a waiting list that's something like ten years long.
Maybe he should go to Mexico and sneak in...and then claim he's "gay".