"The definition of free software includes the assertion that it must be possible to use the software for any purpose. But if it is possible to use software in such a way that others lose their freedom to exercise those rights, is this really the standard we should be holding? Again, it's unsurprising that people will attempt to solve this problem through licensing, even if in doing so they no longer meet the current definition of free software."

This is the paradox of tolerance mapped to world of free software.