Morrissey became vegetarian at age 11, inspired by his mother, a long time animal rights activist and vegetarian. Many of his lyrics refer to the issues, the most notable being Meat is Murder from the Smiths album of the same name, and more recently The Bullfighter Dies. Meat products are banned from all of Morrissey's shows.
I see no difference between eating animals and paedophilia. They are both rape, violence, murder. If I'm introduced to anyone who eats beings, I walk away. Imagine, for example, if you were in a nightclub and someone said to you "Hello, I enjoy bloodshed, throat-slitting and the destruction of life," well, I doubt if you'd want to exchange phone numbers.