purging wayland

[Mike McClain]

I guess I'm confused, thinking wayland sits on top of X11 rather than
X11 depends on wayland.
Thinking I'm using X11 rather than wayland I went to purge wayland.
root@RPI2:~> apt purge libwayland*
    REMOVING: firefox galculator x11-utils xserver-xorg*
I declined this.
Can someone explain why purging libwayland* would necessitate removing
xserver-xorg*?
Thanks,
Mike
--
"War always hides a great many dirty secrets."
    - "Foyle's War"