Nothing will benefit human health and increase chances for survival of life on Earth as much as the evolution to a vegetarian diet. She is self-aware, intelligent, emotional, communicative, has memories and purposes of her own, and is certainly able to suffer deeply. If there is no struggle, there is no progress. Those who profess to favour freedom, and yet deprecate agitation, are people who want rain without thunder and lightning. They want the ocean without the roar of its waters.
Power concedes nothing without a demand.
It never did and never will.