The BA cabin crew will do likewise, it just might take a little longer
No they won't. You seem to underestimate them. Are you forgeting the last strike ballot? 96% in favour !! And what did BA do cancel over 300 flights, and what did the cabin crew do, call off the strike the night before. BA looked so stupid cancelling 300 flights when in fact their cabin crew were never on strike! And by doing so managment managed to waste about 50 million pounds.
BA cabin crew would prefer to shut down the airline rather than give up, why? Because they don't have much to loose , specially the newer ones( a majority). The worst thing that could happen is that they end up with these new T&Cs in a new airline, the best thing they can hope for is that they will manage to maintain much of what they have, so why not take the gamble?
What airlines should start doing is raising the ticket prices to meet the fuel price and then see what happens, maybe after all people keep flying specially BA customer profile, not so much your average FR pax.
Why airlines insit of making money by reducing cost? And not so much put as much energy in the first place on generating revenue?