https://mixxx.org/news/2021-03-26-a-statement-on-richard-stallman-and-the-free-software-foundation/
While Mixxx is not officially associated with the Free Software Foundation, there's an inevitable connection in the public's mind between all FOSS projects and the FSF. Furthermore, Mixxx is and always has been licensed under the terms of the GNU General Public License, version 2 or later, and only the Free Software Foundation can publish new versions of the GNU GPL which could be retroactively applied to the Mixxx code. Given this relationship, the Mixxx project has an interest in ensuring that the Free Software Foundation has inclusive, principled, and wise leadership which can effectively lead the broad free software community to meet present and future challenges.
This is wild. They want Stallman gone because they fear he might change the GPL so that it discriminates against persons with Down's Syndrome? Stallman is not a danger to the future of the GPL, he is guarantee that it will remain what it is.