Human society, as a manifestation of Life, will not be able to treat itself with kindness and respect unless it becomes aware that animals should also be treated with kindness and respect. Individual human beings, as integral parts of society, will not be able to stop abusing each other until they stop abusing animals. These are meta-scientific facts and in a way argument is futile in most cases. Logical arguments will usually be rejected or subverted by those who cannot accept and understand these facts. On the other hand those who do understand these facts do not need arguments to convince them. Only a few people, those who are on the cusp, may be helped if they are humble enough and intelligent enough to understand the arguments and give up their false, contrary beliefs.
Search for the Earthlings video which illustrates some of the real life distressing situations caused by the meat industry.