No doubt fewer people in the world as a whole would be a good thing, but currently first-world governments are worrying about falling population and declining birthrates, not overpopulation.Is it because TPTB (politicians). are scared of saying that you, the population, have to save more for your old age; (religious leaders) still praising big families rather telling people that big families - that's 2plus births - are crime against humanity!
The message isn't getting through quick enough!
More people need more food, energy, housing, waste disposal, medical care, transportation, Water! The earth has finite resources that are being consumed at an ever increasing rate.