Scarcity
A reader, apparently a QAnon-style conspiracy theorist, sent me the meme here. Yes, there are people who think that the governments of the 206 sovereign nations are conspiring to kill a significant percentage of the world’s population.
Overpopulation isn’t a myth, but the problem with it isn’t the availability of land. Though food and potable water are issues in some places, the biggest challenge is the ever-growing demand for energy, both for transportation and for everything else in our lives.