Well, if there is a shortage of pilots due to cost then maybe the pay for pilots will increase? Which will cause more to come, loosen up those credit lines and more pilots would come in and we’ll find the equilibrium again
Of course, I don’t think airlines will ever increase pay. I think they’ll offer to pay for your training and then dock your pay for a lot more than it ever cost to send them to training.
And then eventually the flight schools will start get airliners to help develop their pilots in house... who will then undercut regionals...