I think everyone was already aware AA is the largest Airline in the world. Unfortunately being the largest comes at a cost. More money more problems still holds true I guess.

Break even load factors for each airline listed below.
Capacity
AA: 78.9%
DL: 74.2%
UA: 75.6%
SW: 72.5%

Reference: https://www.forbes.com/sites/jamesasquith/2020/03/31/analysis-how-much-money-do-empty-flights-really-cost-airlines/