It's a hatred I don't understand, beyond the sadly common 'it's scary because it's different' angle. It really is no different than hating gamers, otakus, hippies, etc. Of course there are certain people that are drawn to the group that are...questionable, but it's true with every sub-culture.
Hell, I'm sure most people here have heard of the freaky things those 'gamers' do...killing people because their murder simulators told them to, stewing in their own filth because they can't stop eating cheetos. THOSE people are weird.
My point being: prejudging based on the worst public information is a poor decision. Stereotyping is a great way to dehumanize a community, but keep in mind that it's pretty much never an accurate view to take. Basically, research objectively first or your opinion is, frankly, not going to be valid.
Personally, I have no problem with them. I know some nice furries, I know some mean ones, and I know some I would stay away from. Funny, that's almost like how it works with people in general.
...this is my 1000th post? Really?