Mark your words?
You talk about being in the nutritional dark ages then mention eating fresh animal meat
No evidence exists anywhere that human beings should consume meat. Our digestive tracts are 4X longer than any other animal that consumes meat (which leads to rotting flesh in our body (not ideal)) and in repeated tests the sight and smell of fresh meat fails to incite child salivary glands but fresh fruit and vegetables does.
Unlike actual carnivorous animals which are equipped with the teeth, claws and digestive means to eat meat. Young offspring naturally hunt other prey and salivate at the prospect of flesh/organs.
To paraphrase yourself - mark my words, we will look back on the human consumption of meat with the same horror that considered bloodletting as a medical practice.
Disclaimer - I eat meat despite the huge risks to my wellbeing.
Test - Leave a toddler in a playpen with a rabbit; trust me he won't attempt to fucking eat it. He has not been social conditioned to see the consumption of meat as normal.
Leave an omnivorous or carnivorous animal in a locked environment with the same rabbit. You will need a new rabbit.