Southern, WGA, Swift, Miami Air, etal. are stepping stone airlines until the dream airline comes knocking on your door with a job offer.
That said, the menu of life is limited. Either you sit by and wait for an eternity waiting for DAL, AA, SW, UAL, JB to call... remain where you are, building time, or apply with and take a job with one of the lower tiered ACMI carriers.
At the end of the day, pi$$ing and moaning ain’t gonna get you on with your dream carrier... is it?