How about not?
Y'know, we have a side too.
I hate people who go out of their way to insult Furries for no apparent reason, just as you hate Furries who go around spewing their Fandom and making us look like general richards.
You aren't in the wrong, they're not in the wrong. All it is is a difference in opinion.
If Blah the Hedgehog comes into your server and you instantly ban him, No. That's unfair.
On the other hand, if they come in and say "OMGSAWHNIK", maybe you're justified.