Greetings, Anon.
Anon1998 wrote:Why is it wrong to let an animal live a net positive life (whereby, it wouldn’t otherwise exist e.g. upland sheep farming) and then kill it as painlessly as possible for food?
That's an interesting question. This thread might be good to start:
viewtopic.php?f=7&t=2583&p=26380
A fulfilled life for a cow or a sheep is MUCH different than a fulfilled life for a human; Having more sheep and cows around doesn't bring any more value to the world, while having a human being around can contribute more to the economy and society. If we're fine with raising and killing animals "painlessly" would it be wrong to do the same to humans, even though they have more moral value? In other words, if we had a farm that raised humans to live good lives until they're 30, is that still ethical? Why so? In the case of both of these farms, they'd still rely on the unethical act of murdering a being that doesn't want to die (especially if they've lived a good life).
There are many other factors to consider here. Animal agriculture is one of the main drivers of climate change (especially when farming cows and sheep), and poses issues for food security, antibiotic resistance, and of course, meat consumption is bad for our health, leading to even more unnecessary loss of human life.
Having more humane farms around is not sustainable, especially considering how they're much less efficient than factory farms, (they use MUCH more land) and it isn't a good idea to have MORE people rely on this type of meat.
https://en.wikipedia.org/wiki/Nirvana_fallacy
Anon1988 wrote:I currently understand veganism as a virtue, rather than a moral ought. Can someone explain why one should be obligated to go vegan (In the same way that giving money to charity is virtuous but not necessarily a moral obligation)?
Is not murdering for no reason a virtue, or a moral ought? We ought to be vegan because it's avoiding unnecessary harm; If there is no good moral reason not to be (and plenty of good moral reasons TO be) then we ought to be vegan, due to the low effort for such high impact.
As far as charity is concerned, I think donating money you don't need to those who do need money is an obligation, since hoarding that money when you can easily donate it is selfish (and hence, immoral). It also applies to voting or volunteering your time; Doing nothing when you can do something is what allows evil to continue.