> You cannot change the license on someone else's copyrighted work.
The grandparent already said that "changing" is not the thing being discussed here, but "sublicensing", so this is a strawman.
The grandparent already said that "changing" is not the thing being discussed here, but "sublicensing", so this is a strawman.
> Windows for example used to ship BSD licensed code, and it would have been a violation of Windows' license to modify that code (even though the original code was under a free software license).
Microsoft didn't include source and if I had obtained the BSD licensed source, I could certainly modify it and distribute it (but not the code written by Microsoft). Also, the BSD doesn't have a sublicense clause which is problematic for your first sentence.