No other animal in Nature will live from its first food source of "Mothers Milk" indefinitely. It is designed for a weakened digestion for newborns and infants who cannot tolerate solid food as a whole food source.
Why then should humans partake of cows milk, whether raw or otherwise?
Cows milk is for cows.........human milk is for humans.............and only designed by Nature for offspring within the early months/years of life.