To me, it's hard to say, this subject is one that's been done over and over again and finally I've come to this conclusion.
It's in human nature to get these intense feelings when you see another creature suffering, especially if you feel it is suffering needlessly... hell it's even normal to want to kill the people that are doing the 'atrocity'. But then you have to look at it as, these people are doing it as a job, not as some sick pleasure they enjoy. You think they enjoy killing animals? They have just de-sensitized themselves enough to block it out and not think about it in their daily lives. Sure, there might be some sick fucks in that field who do enjoy it and makes jokes like "Did you hear the noise that cow made when I sliced it's throat" or whatever, but that doesn't mean the whole profession is that way, the psychos are everywhere.
Overall, I'm strongly opposed to it, but once you look at all the facts you see it's a bit hypocritical to say "HAY GUISE DON'T KILL THAT ANIMAL CUZ IT'S FURRY AND LOVELY" but then you don't care about the cow or chicken that went through equally aweful conditions to end up on your dinner plate.
Like I said, I'm against all animal cruelty, not against killing of animals though. It has to be done, I only wish it was done more humanely. I mean unless it's animal torture (like torture cat, zippo cat) then I guess I can accept it.