QUEER THEORY More a brand of sexual politics than a social scientific theory, this uses the pejorative ‘queer’ in a positive way to denote a commitment to non-conformist sexualities (such as pornography and sado-masochism as well as homosexuality). Queer theory asserts that there are no natural sexual identities and that queerness is everywhere; everything is a cultural choice. Queer theory encourages novel readings of literary works and cinema but also of cultural products (such as advertisements) in the light of its assumption that queerness is pervasive. - The SAGE Dictionary of Sociology

Zoophillia is a non-conformist sexuality, so zoophiles would be part of the queer community, it would seem. Since there is no natural sexual identities and they're only a product of culture, how can anyone who adheres to queer theory object to a person who is sexually attracted to animals?