We have plenty of C-130s that can be used to fly non-Mexican citizens back to their home country. After a flight of a few hours in that ancient aircraft, they won't want to come back. lol
I remember my first trip to Crete for Annual Service Practice. Even with earplugs, my head was ringing for a couple hours after that 5 hour flight from Germany. My second trip, a few years later, was commercial...big difference.