OK, I’ll bite (har!). Yes, taking milk out of the mouth of a calf whose chances then become great of going straight to the slaughterhouse just so I can enjoy everything from ice cream to lattes is not what I’d call the moral high-ground. However, just because I have chosen not to eat meat does not (a) mean I choose not to eat meat for moral reasons or (b) mean that I should force myself to not consume any animal products for the sake of moral consistency. In other words, just because I am in part responsible for perpetuating an industry which slaughters calves does not mean I should abandon my moral objection to eating the flesh of an animal just so my beliefs and moral stances fit nice and neatly into a pidgeon hole for myself, you, or anyone else.
Ethics, especially the human sort, are rarely simple or consistent. When I first became a vegetarian, I tried to be a vegan, having been convinced (still am) that animal products are a poor choice for my diet, for reasons primarily having to do with health and environmental concerns. Since this isn’t intended to become a debate, I won’t enumerate those reasons here. The idea of not wanting to kill something, while that was certainly part of my drive, was not the main reason. I still swat flies, I still mass-murder bacteria living in my body, I still cannibalize plants–all living things. Maybe not furry and cute, but at what biological level does taking a life cease to be of moral significance?
I returned to eating dairy (including eggs) when I found my diet was unmanageable–I couldn’t eat out, I couldn’t eat many things I enjoyed, and it was hard to get enough complete proteins through grains, veggies, and legumes. So I have been slowly moving toward veganism by eliminating these things from my diet gradually, instead of cold turkey. This is partly due to lack of willpower, also in part due to the lack of a wide support system for veganism (“You’re a *what?[/i}”).
The health risks of eating veined meat (again, I’m not positing this as a fact we should all accept–only to say that I am satisfied for myself that it is the case) as a primary component to one’s diet outweigh the risks of consuming dairy products as a supplement to it–although there is certainly evidence that dairy’s not a good idea in any amount. But it’s hard to make such a decison, even harder to make the transition. And it’s primarily about health, the environment, and sustainability–morality is further down on the list.
But even if it was about morality: if I have the choice between contributing to the death of a cow and a calf, or just a calf, and I choose to contribute just to the death of a calf, I take the view that if it isn’t a better choice, it’s at least no worse. And I don’t feel any obligation to be consistent about it, especially if I feel like I’m moving toward a life choice that doesn’t involve consuming any animal products at all.