The fans which stop going will be replaced by those willing to pay, its simple supply and demand and that’s why we aren’t increasing capacity right now. The rarer the product the more that can be charged, its modern football economics.
The has to raise prices in order to keep up with the established clubs who’ve had a massive head-start financially and who have also been more commercially savvy. I don’t necessarily agree with it but the waiting list shows that any season tickets not renewed due to costs will be brought by someone else. There is no loyalty towards fans anymore just increasing the bottom line.