DME is so much more complicated an animal then people realize. Many years ago, I was one the leads for one (ONE!) of the vendors involved. DME was a roster of many companies all working together. COVID - NOT COST - was the death of DME. One of the companies went out of business and was then purchased. The TSA changed the luggage handling rules. The airport changed rules and regulations. The employees were not even Disney people. DME without the luggage and airline tickets is a hollow shell of useless - it's basically just Mears and was no longer worth it without those extra services.
Don't get me wrong... I miss DME as much as everyone else. I loved the concept of dropping my bag off at my home airport, not picking it up and having it appear in my room. I touted and strongly believed in the "Disney bubble" and I used to feel like I was truly on vacation after I parked my car. DME is part of what stopped me from going to other parks in the area. But I GET IT. When you consider that the alliance was shattered, and could not be rebuilt. When you add in that people's habits have changed. They want to drop by a grocery now. They don't want the long waits at DME. The busses took (on average) 2-3x longer than other options. I can see why Disney made the choice and it's not all about the dollar.
Yeti has not worked for a very long time. That's not a recent thing, and anyone who has studied the poor sick robot knows that there is not any good (or reasonable) option to fix him.
While I would love a 5th gate and I think it's time - I do agree that one is a long way off. There are many options for expanding the parks. I do not think Disney is short right now on cap-ex. We have a number of new or refurbished experiences on the way. Areas that have frustrated me for years because of being under-utilized (like like life pavilion which is being turned into play!). I am glad to see a huge amount of effort going into cleaning up EPCOT's Future World. The Star Wars hotel is going to be terrific and I am very much looking forward to it. We have recent rides at HS and new ones at MK and Epcot. New dining everywhere.
I think you are cutting the parks short. You are irritated that some things that Disney provided for free even though no one else in the industry did are now being charged for, or going away. I get that. So maybe you need to take a break from Disney. But I don't count them out yet. The parks are very busy with people willing to pay, and as long as that is true, I do not expect them to change. I think you overestimate the number of people who are like-minded with you. There is a percentage on these boards, that's true. But empirical evidence is that Disney is struggling right now with crowd volumes, and that's with there still being a pandemic and many people not wanting to travel and putting off their travel plans. I do not think Disney is going to be hurting for people willing to pay their prices, which means by simple economics, they are doing the right thing. As a customer and a shareholder, I support their current moves as they make good business sense.