Fax. When it comes to bestiality, furries claim that its bad because it hurts the animal. But never specify if physically or mentally. Doing the deed with an animal hurts it both physically and mentally. Mentally because of consent issues and physically because they are not designed to mate with humans or something barely related to them. Yet whenever discussing the immorality of bestiality furries only point out the mental aspect and not the physical aspect.
And according to my investigations, the reason why they don't like talking about the physical aspects is because they have been brainwashed into thinking that bestiality is fine "so long as the animal or creature consents". Hence why many of them are defending diddling non-humanoid creatures. They simplify bestiality and its issues so they can brainwash people into thinking like them and get their wacky ideologies accepted as the absolute truth.