Personally, as a non vegan that eats very little meat and barely consumes dairy, I think it’s ok to kill animals if it’s humane. Like killing an animal just because isn’t alright. And personally, I think the entire animal needs to be used. It’s coat, meat, organs really anything that can be used. There’s no reason to kill animals, because we have flat molar teeth, made for chewing through tough plants, so we’re anatomically herbivores. But a healthy adult is completely able to digest meat. In my opinion, killing animals can be completely justified if the animals parts are put to good use.