From my understanding from different people. The problem with X11 is that how it’s currently designed doesn’t allow the devs to implement modern features that are necessary for a modern display server in today’s world, that is the reason why they created Wayland. If enough people disliked Wayland that much someone or several people would have already created an alternative solution that is better than Wayland but seems no one has, and if they have it seems it’s not better because the it hasn’t gotten the eye of any of the main stream distributions.
The difference is the kernel is still being actively developed and updated with modern features.
Wayland was created in 2008, so Wayland hasn’t existed as long as X11/Xorg.
Redhat has plans to drop X11/Xorg support, so it seems it will probably not be likely that an alternative will be created unless someone else does.
With all that complaining about something that you don’t have to pay for but are able to use for free be my guest to write a better display server, that is better than both X11/Xorg and Wayland.