This may seem an extreme comparison, but to one who deeply cares about Free Software as defined by the FSF, proprietary software is bad. That's the difference between people who prefer Apache/BSD/MIT licenses versus those who prefer the (A)GPL.
Fighting fire with fire is one option. Fighting fire with water is another.
This may seem an extreme comparison, but to one who deeply cares about Free Software as defined by the FSF, proprietary software is bad. That's the difference between people who prefer Apache/BSD/MIT licenses versus those who prefer the (A)GPL.