> But if it's open source, it would be pretty difficult to enforce your policy. So, two things: (1) a license that discriminates against a particular group is

> But if it's open source, it would be pretty difficult to enforce your policy. So, two things: (1) a license that discriminates against a particular group is not open source, (2) being open source or not has nothing to do with whether enforcing the license will be difficult. Enforcing the license is just a matter of the resources available to the copyright holders. Many proprietary licenses are routinely violated, some free and open source licenses have been enforced.