It's disturbing to me that people think population must keep growing. If anything the world could stand to LOSE a significant portion of the population. Resources would be far less strained.

If we built our economies on the expectation of continued population growth, then that just means there was a MASSIVE lack of forethought. But that doesn't mean the solution is to start pumping out more kids. Instead we adapt how these structures work to accommodate the flat or lessened population numbers.