So, I'm going to interject here and hopefully bring us all back to reality a little bit. I'm not denying that we have some opportunities on how we grow our food, but we all have to realize that pretty much all life on this planet derives its food in some horrifying sense. I mean, have you ever seen a preying mantis rip the head off a bug and eat it like it didn't exist? Ever seen a wildebeest cross a river and literally be torn in half by a crocodile? Or watch bambi get caught by the hands of a baboon and have its legs ripped off and eaten alive? Heck, my parents were just telling me they lost one of their chickens. It was dragged out of its yard pen, had its head ripped off, and all its innards were torn out and eaten. The rest was sprawled out across the grass like a Quake 3 gib fest. Life isn't exactly pretty about its food, guys.
So while you can make comparisons of butcher houses to Auschwitz you want, there is a sense of stewardship that goes into the way we manage our food. That doesn't mean we're without areas of opportunity. We, as humans, need to get away from these massive single-crop superfarms and move to a smaller, more sustainable, but far more productive multi-crop farmsteads. We should be focusing on our soil rather than feeding the crops directly. As for meat production, we really need to get away from steroid infused meats and stop overfishing our oceans. There's a lot that we waste, and there's a lot we can do better.
But everyone becoming a vegan because the poor animals have feelings is not the solution.