kodah parent
OpenGroup manages that social construct, the government stuff is just there to protect against misidentification and encroachment. The standards for Unix, Sockets, and LDAP were all transferred to OpenGroup to manage and they've done so.
A single entity generally doesn't get to manage the meaning of a word. The real meaning is in our collective heads, and Linux is a Unix for most people in the field. Even the ones (like myself) who are fully aware of OpenGroup and the UNIX trademark.
In fact I consider Linux a Unix specifically to annoy the sorts of people who think OpenGroup has the last word on what constitutes a Unix. ACAB.