It's not a social movement.
Depends on who you ask.
My issue, one that applies to a wide range of fields outside furries, is why folks are so obsessed with labelling themselves and others. If you were to ask me if I'm a trekkie I probably wouldn't answer you directly, instead I'd answer that I enjoy watching
Star Trek.
The difference between the two is that I have no idea what you have in mind when you say "trekkie", beyond that it probably has something to do with
Star Trek. By answering indirectly I'm able to better delineate my exact relationship with the franchise. Also, in identifying myself
as a trekkie I'm implicitly identifying with others who identify as trekkies, when in fact I've no desire to do any such thing.
Same thing with "furry". If the label is tainted in the public image by extremists, don't use it. If you don't want to be identified alongside such folks, don't use the same label they do. Or don't use any label. Forget about being part of some grand community of anthropomorphic animal lovers and just be yourself. If some folks draw a straight line from the kinds of images in your avs to having sex with animals, fuck 'em. For folks whose opinions actually you'll undoubtedly have the opportunity to explain it to them in more detail than can be conveyed with any label.