My friend I don't want to be flip or arguementative, but I must ask are you serious?! There are a lot of foreign born pilots flying for US carriers, major airlines and regionals alike! For that matter Atlas air has a whole slew of JAA pilots flying N registered A/C as Capts!!
Seriously, how hard is it to get a converted rating?! JAA to FAA seems a much easier time than FAA to JAA.
Not trying to flame or troll just curious as to the issue?