Vegan Ethics It's also not enough to make it a non-moral issue. — BlueBanana
The puzzle I am getting at is that nature has provided a means to get food which requires death and predation, it includes plants who also eat dead organisms.
So if we were obligate carnivores we would have to except that we have to kill animals just like carnivores do (and even most herbivores have been seen eating animals) See this deer eat a bird
https://www.youtube.com/watch?v=sQOQdBLHrLk
Murdering someone is a legal term for unlawful killing so it is not a helpful term. But I think killing someone would only be natural if it was to ensure your own survival. Killing for fun might be a carnivore strategy to gain hunting skills but just torturing something for fun is not something that seems to be a natural strategy.
I don't think you can go from people killing animals to eat them for nutrition to a comparison with torture for fun because one is innately natural. I don't know if morality is supposed to be what is natural or transcending nature and bettering it. But the closer something is to a natural survival mechanism the less it seems coherent to call it immoral.
Anyway first of all I think we have to ensure that we have resolved the debates as whether humans can be natural herbivores. I think taking essential supplements would be like depriving ourselves of something in our nature to be moral exemplars (for what purpose I don't know).
I feel that sentiments about harm in nature lead t a rejection of life because it is full of harm, my brother has been paralysed by M.S. which he has had for 20+ and I have suffered a lot since childhood now from anxiety and depression. I think antinatalism is the only way to eradicate human harm. But if we tolerate some harm to promote life then I think food is the wrong kind of harm to target.
You could advocate reducing the population so humans eat less food and more humane slaughter methods and animal husbandry or more promotion of veggie meal/alternatives. I think any progress in reducing harm will come from other areas of life if at all and I do think mindless procreating is one of the most irresponsible things.