WDW has taken nothing away. They've changed their services. But there's nothing anyone has paid for that is being denied them. They aren't being robbed and WDW isn't stealing. They've just changed their offerings.
Gas stations used to be service stations that checked your oil and air pressure while someone else filled up your tank. Flights used to have meals and drinks. Doctors used to make house calls. People used to have jockeys in their front yards. Times and expectations change.
If you compare the overall experience of the parks to what is was 30 years ago, there would be a lot of differences. But some of them would be improvements. The ability to order food remotely instead of waiting in a line is an improvement for most people's day. Having your picture taken on a ride is an improvement, as is having professional photographers around to capture moments if you want -- they'll even use your camera (or did, preCOVID). A second Dumbo is an improvement. More rides at HS, AK and Epcot are improvements.
Some of the things being lamented are the fault of COVID. Some are the fault of people not going back to work in the same jobs they had before. But some of it is the fault of the WDW guest, who has also changed over the decades. When I was younger, going to WDW, I couldn't imagine claiming a spot on a curb to watch a parade or a fireworks show, but it was commonplace (before the parades ended) for a decade, with adults forcing out children, and people squeezing in front of others. Fights to watch a parade or a fireworks show. I couldn't imagine taking a picture of a full trash can and publishing in the newspaper -- now it happens daily, but the publication is the internet. Why would WDW provide passage from the airport if doing so isn't enough, because people then complain about the lines, about the length of their wait, about them not getting their luggage to their room soon enough.
So as the world changed, WDW changed with it. It's no longer worth the PR hit to provide some of these services. It's no longer worth the IT and Guest Relations squabbles to deal with FP. It's no longer enough that some Mousekeepers some of the time made towel animals -- soon everyone wanted them every time and complaints came when they weren't there. Or weren't good enough. Or the right animal. Or ended up in someone's bag on the way out. Because they couldn't please everyone, they stopped the service. I can't blame them, to be honest. Sometimes you have to just shrug your shoulders at customers and say you've done what you can do -- I offer this at this price, and if you don't want it, okay.