Why does xorg still exist?

I am familiar with the development history of xorg. I am not learned as to the history of failed projects to replace it. What replacements were proposed before Mir and Wayland and why did they fail? They couldn't have been that bad. Wayland is as bad as xorg if not worse by its lack of standard implementation alone and it received financial backing.

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the vast majority of people have no use for a desktop. it's overkill. 99% of consumer computing power is spent on browsing facebook/imagereddits and passive media consumption. if a normalfag wants to do something niche, they will just buy a dedicated unitasker machine for it (e.g., game consoles, home theater stick, VR headset, etc.).

the last bastion of desktops are PCs in corporate America cubicles that run some enterprise C#/Java programs. one day some non-boomer CEO will figure out that it's cheaper to buy $30 Android tablets from China, $5 bluetooth keyboards, $1 Excel licenses, hire Pajeet to shit out some Android Java, and an AWS account than to pay for Windows licenses, monitors, PCs, salaries for an IT department specializing in Ctrl+Alt+Delete, and the whole deal. that will be the day that Windows can finally be allowed to die.