If by that you mean advocating the banning of proprietary software, I don't know that they've done so. They do advocate that governments exclusively use and pro

If by that you mean advocating the banning of proprietary software, I don't know that they've done so. They do advocate that governments exclusively use and promote free software[1]. Some of their publications also refer to their "goal of ending the injustice of nonfree software", and that distributing proprietary software is "unethical" and "mistreats" users[2]. EDIT: My interpretation of Stallman's politics is that he would happily support legislation to forbid nonfree software, but I think the FSF intentionally avoids the subject for the sake of their libertarian supporters. [1]: https://gnu.org/philosophy/government-free-software.html https://gnu.org/philosophy/government-free-software.html [2]: https://gnu.org/philosophy/free-software-even-more-important.html https://gnu.org/philosophy/free-software-even-more-important...