Comment by ryandrake

Look at it from the very high level point of view of the ~500 or so richest people on the planet that rule everything: Planet Earth is basically a vacation resort for them that they control, and the remaining 7,999,999,500 of us are the staff that serve them and keep them entertained and comfortable. If that can still happen with only 6 billion, 2 billion, or 50 million of us, they are not going to care. When their wealth stops coming from other people's labor, they'll just dispose of us.