> people choose the cheapest product the cows be damned.
When vfc1 says "One thing implies the other", the charitable interpretation of that statement is likely "given the way our society is structured at this time, it's inevitable that this result will obtain".
When taking care of cows means spending more money on their welfare than some competitor, and when people are willingly disinterested in the welfare of the cows whose milk they consume, we have a good-old-race-to-the-bottom.
The most powerful work I've read on the topic is the 1975 classic "Animal Liberation" by a philosopher Peter Singer. In it he uses excerpts from literature written by the industry (presumably the most-rosy picture you can find of the conditions of animals in the factory farms) to show how horrible the conditions are (and to make an argument why we ought to abstain from consuming and why we ought to try to dismantle the system).