So to answer your question. I don't know. Time will tell.
But you are, overall, wrong. The goal is, and always has been, milking. Extracting maximum of milk with a minimum of moo. The current breed of travellers are docile and compliant ( I honestly don't know my parents would have been able to pull some of things they did today ).
Consumers are idiots. I sometimes wonder if they even saw how things could be.
Absolutely. Over the past few decades budget airlines have made it obvious that there's a certain (fairly large) class of passengers who will endure significant inconvenience and discomfort is it saves them a couple of dollars.
The traditional airlines certainly have the option to say "Nah, we're not going there." But, for example, business class-only airlines and routes generally haven't worked out for airlines.
Is that really a good thing? The market has spoken: people clearly prefer money in their pockets than a few inches of extra space for a few hours.