As far as humans vs. animals, its all part of the whole elite/Malthusian belief system that values only some people and regards most lower classes as little more than animals. Its sort of a 60s eco-warrior wildlife management mentality applied to human population.
That belief system is missing the reality of the similarity between individuals in different classes, the current trends which seem to actually aim toward inverted population movement, massive resource efficiency improvements possible with better application of technology to society, and the inherent value of human life vs. lower life (see ideas like the noosphere).
That belief system is missing the reality of the similarity between individuals in different classes, the current trends which seem to actually aim toward inverted population movement, massive resource efficiency improvements possible with better application of technology to society, and the inherent value of human life vs. lower life (see ideas like the noosphere).