I think there could be a game changer. If I remember right, they already found a way to reproduce cheese and other dairy products in the lab, which can’t be distinguished from the original. The only problem is that it’s such an act to start it in Europe under the European Parlament. I think it was “precision fermantation”
For example, companies like Perfect Day are pioneering this technology, using fermentation to produce milk proteins without cows. By feeding sugars to microflora, these organisms create the same proteins found in cow’s milk, which can then be used to make products like ice cream, cheese, and yogurt. This process reduces greenhouse gas emissions by up to 97% compared to traditional dairy farming, offering both environmental and ethical benefits(InsideHook)(ScienceDaily). https://www.insidehook.com/food/precision-fermentation-milk-dairy https://www.sciencedaily.com/releases/2024/08/240801121845.htm
I think the main difference between you and the people from your prehistoric roots is that you have many other choices. You don’t have to continue to hunt down many animals, because you can choose to buy certain foods and you also have the choice to buy plant based foods.
Whenever you have the choice to buy plant based foods, there is no chance to argue that purchasing animal products in that case is somehow ethical.
The only way to defend hunting for your own survival is when you don’t live in a place where you have many foods available. Like, let’s say you are on an island where there is no shopping centre or anything. You obviously need to hunt to survive. But if you live somewhere where many plant based foods are available, saying that killing animals is justified in order to get food makes no sense at all. And is certainly not ethical (Deciding to kill an individual being without any necessity can never be ethical)