Beastality is wanting to have sex with animals. While there are undoubtably a few furries like that, there's regular people like that too. The notable difference with "Furry" is that the animals are Anthropomorphic- they have taken on a human appearence, and usually, intelligence and society. It'd be like if you took the physical traits of an animal, then mashed it together with the general human shape and cognitive ability. Freely speaking, even I wasn't a member of the Fandom, I wouldn't have much/at all of a problem with it due to said anthropormorphized animals having cognitive capability of their own, and thus, in theory, being fully able and capable of making the decisions that people often try to group with beastaility.