Clearly your first statement is incorrect: Android is an example of a Linux system that doesn't expose a GNU userland. As for “the majority”. I don't know what

Clearly your first statement is incorrect: Android is an example of a Linux system that doesn't expose a GNU userland. As for “the majority”. I don't know what you mean by that. The vast majority of computer users don't have any experience of anything that is released by the Free Software Foundation; they just use applications, some of which are released under the GPL (e.g., Audacity or VLC), and most of which are not. So what is the population of which the majority is unable to use GNU products? Re Emacs: there is a substantial community of Emacs users. These people have not found it unusable. That other people use vim, VScode, or something else, or have no use for a text editor, doesn't undercut this fact.