If it is illegal to kill people, it should be illegal to kill cattle. This is mean.

Humanely euthanizing a cow has nothing to do with being mean. When a cow is very sick, far too injured to be helped, or is experiencing some form of chronic disease or illness that is causing it to suffer, the kindest and **most compassionate** thing to do is to put it down. It is selfish to think it's "mean" to euthanize an animal that is suffering a slow, agonizing death when we have the tools to speed the process along. The equivalency to killing people is non-existent and completely irrelevant. If you care about animal welfare, one of the tools that you also need to care about is a way to humanely euthanize an animal. This includes your pets; as it does include livestock.