that's all you can do when confronted with the reality that AA has cut 17% of its own capacity - totally separate from US - over the past 6 years at NYC where the industry as a whole has added 1% and DL has added 46%?
AA might well be profitable in NYC now but they gave up a whole heck of a lot to get there - gutted their NYC-Caribbean operation, have reduced capacity in the transcons significantly, have cut flying to other carrier hubs as well as former AA hubs (STL, RDU), and have no presence on their own metal from NYC to Asia.
AA's average fares in NYC have grown at the slowest rate of any of the big 4 carriers in the NYC market, proof that giving up size is absolutely related to pricing power.
If that is an acceptable niche position, then I say go for it.
BTW, since you and Mark want to talk about LAX, DL has said that LAX is solidly profitable for them which shouldn't be a surprise since DL has higher average fares than AA, uses no 50 seat RJs, and has no aircraft in its fleet that have a CASM even close to the now-retired AA 762s which were the highest CASM aircraft in the US carrier fleet.
So, if AA is now profitable in LAX, congratulations and welcome to the club.
DL expects to be profitable in NYC and did it by adding 45% capacity compared to cuts by both AA and UA.