• Your weirdness with milk stems from it being from a mammal and you seeing more similarity with a mammal. But the underlying processes are equally estranged from the perceived natural way. and for the natural way again the definition remains difficult, because humans 50, 100, 500, 1000, 5000, 10.000 and 50.000 years ago all had very different lifes in which very different things happened.

      What you described with artifical hormones is something of the past 50 years. But what about the other 6.000 years of humans drinking milk already? What you describe isnt specific to milk.It is specific to modern industrialized countries.