Honestly, it depends on the friend. If it's someone whose open to reason, and has been poorly educated on the matter, sure I'll try to make them see us as who we really are. Well, the majority of us, anyway >3>
I myself, have only friends here that think furries are just odd/strange/weird/etc. Of course I'd keep them as my friends, even if they "hated" furries, simply because I know I don't fall under the stereotypes they would/could say, and I wouldn't feel personal offense.