@mischievoustomato A law against murder is a restriction of freedom to murder, but it's pretty damn obvious that murdering someone is not something that should be allowed, as it leads to a reduction in freedom due to someone being killed.

Not allowing software to be proprietized is the same - it's pretty damn obvious that proprietization of software leads to a reduction in freedom.

As I mentioned, such restriction isn't even up to the GPLv3 - it's up to the government.

You should complain to the government that you're not allowed to relicensed "All Rights Reserved" software to under your own terms if you have a problem rather than blame the GPLv3.