The most logical argument is obviously the fact that all mammals are to be weaned off dairy by a few years of age. Logically, human adults are not meant to drink milk, it is food for babies. The calcium scam is a myth as well. Physiology and biomechanics tell us that weight bearing exercise trumps calcium, and besides the logic stands to reason that if an adult lion (or any adult mammal) does not need calcium, why should we? How do any carnivorous animals get calcium for that matter? How do dogs? Cats? Hawks? Bears?
Dissenents of this logic would say that carnivores get calcium from bones, but does anybody really know if that is in fact true? How many mg of calcium does a dog get from the average bone gnawing? How do pacific islanders in tribes get their calcium without milk I wonder? LOL
When russian astronauts went into space for the first time, they suffered extreme osteoporosis and calcium supplementation did JACK squat for restoring bone health. Weight bearing strength training proved superior when it reversed their osteoporosis.
I am getting off point here, the argument still stands whether milk is healthy or not, and I must say, whether it is healthy or not, the logic just is not there. Natural selection and micro adaptations in human evolution allowed vikings and northern europeans to adopt dairy when meat may have been scarce. Those who had severe problems with meat died off, those that did not lived, but that still does not mean milk should be in the human diet. All it means is that milk kept us alive in a time where meat could not have provided us with enough calories.
Finally, anyone following a true paleo diet does not drink milk. Milk is a product of domestication. Laziness, grains, soy, and all the other crap that followed were products of domestication as well. To put this all into perspective, those that want to practice a REAL paleo diet need to throw the milk in the garbage and start eating like a hunter gatherer.
I was once a believer of raw milk myself, till I noticed that I was going on 6 months on the primal diet and still had acne all over my face and body. I gave up the milk and went full meat only paleo, and what do you know, 100% clear skin. I also feel that milk was giving me feminizing effects and now I am reversing those, like having a deeper voice, more chest hair/ facial hair growth, and a leaner build. I dont retain as much water anymore like I used to. I had a problem where I would hold so much water after a meal that I would be lean before dinner and bloated/ fat after.