The cows at my sister's dairy farm live a great life. The waste elimination is a problem that needs to be addressed, however. The environment is important. I think that in moderation, dairy foods are healthful and a good addition to the diet. It is true they can be high in fat and cholesterol.
Some people tend to over-eat dairy items, especially cheese.
And, I want to continue to have an open mind while I try to protect my bones by consuming my three servings of low fat milk or dairy products each day. I don't know of a single case where an individual who drank too much milk was guilty of driving drunk and killing others.