They can't grow by adding routes, because there are no pilots. Even if they could get pilots, there'd be no slots because there are no air traffic controllers. But even if they could get pilots and slots, there are no planes, because Boeing sucks and Airbus can't make planes fast enough to supply the airlines that don't trust Boeing. And even if they could get aircraft, there are no engines because the Big Four aviation cartel cornered the market on working jet engines.