I'm sorry, does having genes that explicitly help in drinking milk beyond infancy not count? Not just one gene mind you, several genes, some of while evolved multiple times in different areas. How does that mean "we're not mean to drink milk after infancy"?

We domesticated grains and legumes around the same time, does this mean bread is bad for us? Are potatoes slowly killing everyone? Is chocolate evil? We're generalists and have a long history of scavenging, we're designed to eat whatever we can get including grass, dirt, and carrion. Our immune system and digestive system are both quite good at processing rotting meat compared to most mammals, and we're much more resistant to toxins too. Dogs are also generalists, yet we regularly eat large amounts of things that will kill them, like onions, garlic, and grapes. We enjoy the taste of natural pest control like mustard and capsaicin. Milk is a rare nutrient dense and safe food compared to what we were usually eating before agriculture.

The Myth That Protein Reduces Bone Health

Despite all the calcium that dairy contains, some believe that its high protein content can cause osteoporosis.

The reason is that when protein is digested, it increases the acidity of the blood. The body then pulls calcium from the blood to neutralize the acid.

This is the theoretical basis for the acid-alkaline diet, which is based on choosing foods that have a net alkaline effect and avoiding foods that are “acid forming.”

However, there really isn’t much scientific support for this theory.

If anything, the high protein content of dairy is a good thing. Studies consistently show that eating more protein leads to improved bone health (4, 5, 6, 7).

Not only is dairy rich in protein and calcium, it’s also loaded with phosphorus. Full-fat dairy from grass-fed cows also contains some vitamin K2.

Protein, phosphorus and vitamin K2 are all very important for bone health (8, 9).

Summary

Not only is dairy rich in calcium, it also contains large amounts of protein and phosphorus, all of which are important for optimal bone health.

-- Source https://www.healthline.com/nutrition/is-dairy-good-for-your-bones

your body is meant for you to digest anything possible

Cow’s milk actually robs you of calcium

[X] Doubt