So, luckily, I got to introduce a lot of people to the fandom and educate them on the REAL furries.
Furry is pretty much an ambiguous term that depends on what the person interprets it as. This is a "problem" and, at the same time, simplifies it and makes it more innocent. I know a handful of furries who are in it because of the porn, but honestly?
Take the base meaning, "One who likes anthropomorphic animals and identifies alongside that community". You honestly don't need more than that, because from that point onward it's practically... down to what one makes of it. For themselves. Not for anyone else, but themselves. If someone's automatically lumping it with sex or something like that and making you out to be some sexual deviant (oh derp, in the same society where sexuality is apparently a major part of a person, and you can't say that you're asexual as a response without someone saying "you just don't know how good it feels to realise it's a big part of life!"), then I've said it before and I'll say it again: Ignore them, because they're not worth dealing with.