You missed the point; Ctrl-C is never going to be "copy" in a terminal, since that shortcut is already in use. Cmd-C can work everywhere, but GUI applications on linux do not default to that.
My `stty intr ^X` disagrees
I've made Ctrl-C do copy paste in the terminal, even in vim, with a special function for wayland:
vnoremap <C-C> <CMD>call WLCopy()<CR>