There wouldn't be a single standard desktop with >80% usage regardless of whether GNOME existed, and KDE will merely be among one of many desktop environment options. That's just the nature of how things work in this space.
You’re talking about Gnome as if it’s an end onto itself. But it did not appear out of thin air just to disrupt KDE’s dominance.
Look at the history again. Look at the names on the emails and posts.
It was done by people, because they wanted it done. For “solely political reasons”? But that’s exactly what politics means: making sure people get what they want. As opposed to everyone having what you want.
You are talking as if those two DEs are the only two options in existence. They are not. Xfce started development in 1996 ahead og GNOME. And if the "political reasons" you talked about were related to licensing issues with Qt, then GNOME is not the one to blame for. Asking people to look at the history is only going to make them discover the truth you don't want to admit.
If you have to use words like "most violent" and "nuclear" to describe a valid & normal act of launching free & open source software that everyone had the freedom of choice regarding whether to use it or not, you need to seriously re-evaluate your personal priorities and worldview.
I use both GNOME and KDE daily for different use cases, and the fact that people like you who hold such views exist is downright disturbing.
KDE was not "THE UNIX DESKTOP"...it never was, not for a single UNIX. If anything Gnome (aka Java Desktop) was a Unix Desktop (SUN Solaris) and is it still for Oracle Solaris.