The animal liberation movement is fighting what is arguably the most entrenched and widespread form of exploitation in human history: speciesism. - Melanie Joy

But why must the system go to such lengths to block our empathy? Why all the psychological acrobatics? The answer is simple: because we care about animals, and we don't want them to suffer. And because we eat them. Our values and behaviors are incongruent, and this incongruence causes us a certain degree of moral discomfort. In order to alleviate this discomfort, we have three choices: we can change our values to match our behaviors, we can change our behaviors to match our values, or we can change our perception of our behaviors so that they appear to match our values. It is around this third option that our schema of meat is shaped. As long as we neither value unnecessary animal suffering nor stop eating animals, our schema will distort our perceptions of animals and the meat we eat, so that we can feel comfortable enough to consume them.

It is impossible to exercise free will as long as we are operating from within the system. Free will requires consciousness, and our pervasive and deep-seated patterns of thought are unconscious; they are outside of our awareness and therefore outside of our control. While we remain in the system, we see the world through the eyes of carnism. And as long as we look through eyes other than our own, we will be living in accordance with a truth that is not of our own choosing. We must step outside the system to find our lost empathy and make choices that reflect what we truly feel and believe, rather than what we've been taught to feel and believe.

Think about it: virtually every atrocity in the history of humankind was enabled by a populace that turned away from a reality that seemed too painful to face, while virtually every revolution for peace and justice has been made possible by a group of people who chose to bear witness and demanded that others bear witness as well.