I don't buy the idea that certain forms of life are more alive and valuable than others. All life is the same. There are plenty of plants that absolutely do not want us to eat them either. All things need food to survive though. You must consume to continue living. There are other problems with eating meat than concerns about killing a living thing, concerns which are much larger. At the very least we do need to be sure to not cause undue suffering in the process, but there is no living without killing other living things.