I disagree with the adjective “largely.” Vegans would not want anything to “work out for the cow” if butter from cow’s milk is the product that someone wants. I

I disagree with the adjective “largely.” Vegans would not want anything to “work out for the cow” if butter from cow’s milk is the product that someone wants. It’s completely and absolutely untenable as long as the butter is a product of/from an animal. If it’s vegetable fat based butter or genetically modified yeast making milk from which butter can be made, that’s not an issue.