And it is perfectly within everyone else's rights to frown upon it.
The liberal licensing of Free software/content does not mean every use of those freedoms is a good and positive thing. And nobody is being inconsistent by treating it as a bad thing, while still recognizing it's within one's rights to do.
Let me guess... Linux distributions are "stealing" Firefox? Oh, there isn't some holy war against that, so it's a good thing. Right.