Many members of the human race despise their own kind. Nowhere is this more evident than in the calls of advocates of population control seeking to reduce the human population to “manageable levels.”
Population control advocates see humans ONLY as consumers, who swarm across the earth, steal the earth’s valuable resources, and willfully destroy the earth’s creatures for their own purposes. To them, humans are equivalent to parasites, since humans leech off the Earth without providing anything in return except pollution and destruction.
To population control advocates, the only responsible thing humans can do is to limit their numbers, so as to stop killing the environment. That way, humans can at least limit the damage they do to the earth.
They advocate abortion and contraception, which limit human population. More radical population control advocates even celebrate war, disease, and the destruction of human civilization.
Furthermore, technological advances which “harm the environment” are rejected and even demonized by population control advocates. And if that means a retreat back to ancient era technology, so be it. Human betterment should not get in the way of the well-being of the earth.
But this is a terrifying view of humanity. For if human beings are only parasites that drain the earth’s resources, should they not be destroyed? This is the logical, terrifying road population control leads down - leading to self-loathing and despair.
Christianity, by contrast, teaches that men should be stewards of the earth, to "fill the earth and subdue it." (Gen 1:28) We are called to treat the earth with respect, while at the same time improving our own station.
For Christians, humans are a positive good on the earth. Humanity thus should seek its own betterment and increase - the more on earth, the merrier.