> there are hugely successful open source projects, but they are generally components of larger proprietary products
Not "but", but "so": "... so they are generally components of larger proprietary products".
Am I the only person who doesn't like the MacOS desktop?
No you aren't. MacOS' interface is not ugly by itself; but it is awful in a sense that EVERYBODY tries to mimic it. As a result of that, we have a great choice of quite similar, cargocult-inspired GUIs.
The confusion of a staff member is measured by the length of his memos. -- New York Times, Jan. 20, 1981
