Vegetarianism & Consciousness (On Why I Don't Eat Faces)

If our consciousness has evolved over time and we still exhibit our ancestors palate for meat maybe it has served some function in natural selection?
There are so many things to consider when constructing one's moral code or value system that all we can hope is that people at least make a conscious effort to do so. Learning to respect the lives of all creatures would bring dignity to the human race, if we are assuming that the majority of the human race cares enough to change anything... We can only work toward individual dignity, integrity, morals and ethics- sadly, it seems the masses are hopeless.
This argument of ethnocentricity in the final note likens carnivorousness to racism... When one views himself to be superior to others and believes his life has more value or that his superior intelligence allows him to have dominion over another, it may blur the lines of discriminatory thinking. Also relative, the animal testing argument: At The Psychiatry Museum [An Industry of Death]- a free museum in Los Angeles put on by the Citizen's Commission on Human Rights (CCHR)- I learned that they used to test psychiatric drugs and treatments such as electro-shock therapy on African-Americans because it was believed at that thime that they were better than animals but less than human. Our social view has changed dramatically since then, maybe over time the same thing will happen with the way we view animals. Maybe as natural selection and evolution continue we will lose our palate for meat or will gain more compassion and stop viewing animals as "lower species" that do not at the very least deserve a decent life and a humane death.