There is no shortage of qualified pilots lining up at the US majors and there never will be. You can always dream that Delta or AA will come begging for you to join with a green card with a bow on it but it will NEVER happen.
The major US carriers are hiring a lot of pilots now and for the forseeable future. This may result in a shortage of pilots at the smaller feeder carriers. It is possible that there will not be enough pilots for these airlines and they MAY need to look outside the US, time will tell.
To get a job at one of the coveted majors is still highly sought after and competitive. There are plenty of pilots in the US to fill these vacancies.