Animals have consciousness and nervous systems, they feel pain, sadness, danger, fear , happiness and pleasure. Whether they are humans or not isn’t a real issue in the case of cruelties done to them, we are not going to elect animals for presidency to ask whether they are humans or not, they are being slaughtered, used and skinned in worst ways, that what matters, humans have similar conditions and abilities in feelings as much as those animals do, at least if we have a little pity in our hearts we should consider veganism and oppose violence, injustices and harm as much as we can to other sentient species, specially that humans can live and be healthy without the use of other animals. Compassion instead of harm would be the best solution for our evolution on earth, our problem as humans is that we seperated ourselves from this example of pity, it would be ironic to pray to a God for mercy when we are unable to give it for weaker creatures.