Reposted and added info because I still don't see a logical response:

I disagree with your "easy" premise of "volume":

For every "start-up RJ operator" there is a loss somewhere else in the network.

Gain Compass dues = Lose NWA mainline dues
Gain ASA/CMR dues= Lost DAL mainline dues
Gain CHQ flying = Lost UAL/CAL/US mainline dues and any RJ ALPA dues
Gain GoJet pilots only= Lose UA mainline dues and any RJ ALPA dues


Even if your theory was sort of true, it takes 2+ RJ pilots dues to replace 1 mainline pilots dues
(That is a lot more "walmarting" than can possibly have actually occured).....and I still aver that the flying is only shifting, not growing.

besides...what RJ airline has been started up in the last 10 years besides Gojets(diverted flying from transtates pilots...non-ALPA), Compass(that NWA created to replace DC-9 flying), and Freedom(which wasn't new growth but diverted Mesa growth...also non union but later absorbed into Mesa)?