Jolly good! I come in and there's lots of juicy material to bite into. However I will only defend nitrocan for now as I have little time.
How is killing a vegetable better than killing an animal?
Sure it looks much more horrific when an animal gets slaughtered rather than some crops being collected but, what's the actual difference?
The same difference that there is between killing a human and a vegetable. Humans and animals have intelligence, sentience, and the will to live.
I would first like proof that animals have more "intelligence" than plants. I would second like proof that animals are "sentient", and plants are not. Thirdly, I would like proof that animals have "the will to live", and plants do not.
Basically what I'm saying is you just pulled a bunch of terms out of your ass with nothing to back it up.