PETA probably thinks it's evil, but I'm sure the farmers who do it don't think so. I personally think it's pretty horrible, but I think evil is too strong a word for it. Unless your intention is actually to hurt the animal because you think their suffering is funny, then I'd probably call it evil. So intent is pretty important.
Or is it? Take my avatar for example, Dexter is a serial killer who only kills other serial killers. There are people who think he is a monster who must be stopped and others who think he is a vigilante stopping monsters. Is he a good man (because he punishes killers) who does evil things (because he kills), or an evil man (because he enjoys killing) who does good things (because he punishes killers)? If the world is as black and white as The Architect claims, this should be an easy question to answer. Or perhaps this is one of those conveniently gray areas.
When does an issue because black or white, when the majority agrees? Jews believe the soul enters the body at birth and so abortion is allowable (though not encouraged) and this is obviously not something Christians agree on. So who is right? Abortion is a black issue and Jews are wrong, or is abortion really a gray issue and Christians are wrong?