Who are the heartless people who are doing this to all these billions of helpless animals? It's the ordinary everyday meateater. Think about that word meateater. Repeat it a few times. Roll it around on your tongue. Go Look at your pet cat or dog or rabbit or bird and then look at yourself in the mirror.
Consumer = producer. No consumer = no producer. Just in case you haven't really thought about why you are responsible for this.
And it causes cancer.
And it's not even necessary.