But Stallman is clear enought during interviews (emphasis by me):
* “The free software movement aims for a social change: to make all software free..." - http://www.gnu.org/philosophy/compromise.html
* “Non-free software tramples your freedom. […] It's unethical and it should not exist.” -- http://multinationalmonitor.org/mm2004/07012004/july-aug04in...
* Interviewer "If there was a button that you could push and force all companies to free their software, would you press it?" Stallman: […] But yes, I think all published software should be free software." - http://www.gnu.org/events/rms-nyu-2001-transcript.txt
* Interviewer: "Would you accept a federal law in the United States to enforce the distribution of source code with every type of software?" Stallman: "I am not calling for such a law as of now, but I think that would be a valid consumer protection measure[…]" - http://www.linuxdevcenter.com/pub/a/linux/2004/12/22/rms_int...