The vast majority of desktop users don't give two flips about security, nor freedom, they don't even know what those things are and don't care to be informed.

I've even seen a few (on reddit) asking for Linux to support giving kernel level permissions to applications, so they can play a few videogames, they are fine with having rootkits on their PC, that's the level of "care" they have.

But that's ok, Linux is already a de-facto "monopoly" on the server side, the most important one, it doesn't need to win over also desktops.