the human genes are sourced from animals and not humans?
you're misrepresenting what i said about supplementation. all humans can have deficiencies and can supplement if needed. i personally only take b12 and taking that compared to killing an animal is worth it imo
i don't understand what you mean with the dogs, cows and chickens that went extinct. the existing ones would die naturally like you and me. where is the harm? i can't see it...
veganism would reduce the death of mice caught in threshers, because most of the food produced today is used by livestock. vegans know that there will always be harm, but the goal is to reduce it
because you mention waste: wouldn't you agree that eating vegan reduces waste more than eating meat? if you answer again with how you personally do it, then again, that is not doable for all of humanity
(sorry that i missed the point about mice caught in threshers and thank you for reminding me, i did not ignore it on purpose)