Has anyone so far stopped you from using your outmoded tangle of garbage? Or do you just not like that major desktop environments are switching to more sensible defaults?

If you're worried about GNOME 50 dropping X11 in the future... okay? Nobody's obliged to maintain your shit. Linux is all about choice, and it's their choice not to spend untold thousands of hours working to keep X11 usable, just like it's your choice to change your Linux to something that does still use it – or to fork and keep it working yourself. Switch to any one of the other desktop environments; see if the Wayland Illuminati or whatever gives a shit.