What are you on about? The open letter was specifically advocating against sponsorships and advertisements of the Military Industrial Complex. I.E. private companies who specifically try to turn a profit from countries going to war. Companies that literally earn money over people’s dead bodies. I think the people that wrote the open letter were very aware that being sponsored by the military was something that is hard to avoid. However there is a clear difference between being sponsored by a military and being sponsored by, like, literal death merchants
As a nix user, guix looks legit nice but it took me until 2 days ago to actually find community projects made for guix(https://whereis.みんな/) . Sometimes I just wish they used the same store and daemon as nix so that nix packages can work as guix dependencies and vice versa.
(Also major thing stopping me from using guix is I don’t get service types at all, let alone how you’d define your own service :( )