There is absolutely nothing natural about drinking cow's milk. Let me stress that once more, there is NOTHING NATURAL ABOUT DRINKING COW'S MILK. Perhaps I am too harsh. It is natural - If you are a baby cow.
Let us reverse the situation in order to get some perspective on this. Here's how it goes -
1. A member from a different species takes your mother, sister, girlfriend, wife, and female friends and pumps them full of artificial growth hormones and other unnatural things
2. This other species hooks their lactating breasts up to machines which extract their milk
3. The other species feeds this extracted milk to its children
Fucked up enough? Because this is exactly what we do to cows.
No matter how humanely the cows are milked, even if they are not pumped full of growth hormones, etc, take a step back and look at just how bizarre this practice is. Humans take the milk from other species, which is meant ONLY for their own babies, and feeds it to our own. That is absolutely disgusting. and bizarre.