Animal love goes back thousands of years. It's part of the Greek mythology for example. Idk if people thought it is natural or good or moral back then, but it sure wasn't completely unheard of.
That being said, I think bestiality and "furries" are different. When you fuck a goat, that's bestiality. You are attracted to the animal and the beast-like characteristics that it has. But when you masturbate to an anime goat with big human-like tits, and a round human-like butt, that's different from bestiality IMO.
Maybe they are not completely different, but certainly not the same .