They are also contributing to proprietary software that uses their software.
Being against that, is a dogmatic approach that accepts no contributions to the cause that also help other causes because only the cause may win.
I'm not really for it, but I understand where RMS and his allies are coming from. Proprietary software makers tend to view their competitors, free or otherwise, as an existential threat, so it is "fair" for the free software folk to view them via the same lens.
Being against that, is a dogmatic approach that accepts no contributions to the cause that also help other causes because only the cause may win.
I'm not really for it, but I understand where RMS and his allies are coming from. Proprietary software makers tend to view their competitors, free or otherwise, as an existential threat, so it is "fair" for the free software folk to view them via the same lens.