Popular euphemism for legacy airlines. However i am sure you will now pose the question as to what a legacy airline is and we will go down a rabbit hole of ridiculousness. Quite frankly I don’t have the time to entertain such idiocracy.
Right now any job is out for the taking. If amerijet, atlas, ati is a destination airline then, the world is your oyster. Less competition to those who want to achieve their aviation dreams.