Good question. The answer should be as following, but will not be for many:
Furries are generally degenerates. This is plainly true, and can be observed simply by examining the furry community. The vast majority of furries are addicted to pornography, and most of those don't even want to stop viewing it. A significant portion draw pornography, which is a level of evil that it is hard to process. Both the drawer and the viewer lose, indeed making it a classic 'Stupid' thing that detracts from society (see attached image). It also shouldn't go unmentioned that there are portions of the furries that are attracted to animals or children. Even if you'll protest and say 'I'm not one!' or 'I don't support them!', you must admit that there are many people who do support and enable these people within the furries.
For a few of these reasons and a few more, being a furry should not be a tolerable thing. I touched on this in the previous paragraph, but I'll go more indepth as to why furries are 'Stupid' in Carlo Cippola's theory of stupidity. Watching Pornography is self-destructive behavior in and of itself for one. Plus, they will detract from society by being public nuisances. This might sound outlandish, but is not wearing a fursuit in public a nuisance to the public? Along with that, there's also the broader topic of furries being victims of a conspiracy to weaken the populace, but I
won't go into that here.