Eventually, there will be no choice. This will be the norm
And this is what has worried me for years as comfort standards continually decline. At present I make use of competitive Business Class (or equivalent) fares for Long Haul. If these become unaffordable I will simply stop flying L/H. There is just no way I'm flying 10/11/12 hours plus in a cramped Y cabin. My holiday begins when I close my front door and ends when I open it again. Many people return from holidays feeling they need a holiday. How much of that is down to the discomfort and stress of Long Haul Y travel?