What do you mean when you say the world is overpopulated?
The world is not overpopulated because there is a lot of land that is not inhabited at all. Consider the vast uninhabited land, such as in Russia, where population density is less than 2 people per km2. Literally, it is only you and nature—I grew up there, and I believe nothing has changed.
Or do you imply that places desirable to live are overcrowded? They surely are, but that is the natural result of supply and demand. If you have limited resources, you end up with a competition. And the competition can result in an unequal distribution of resources that we observe, as
@EvisceratedJester noted.
Image source:
https://en.wikipedia.org/wiki/Popul...ld_population_density_1994_-_with_equator.png
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True. I do not want to sound offensive, but I believe your genetics will not survive in a few generations because you lack the genes that correspond to dominance. But that is just my opinion mixed with a wild prediction
.