And I guess so long as you have room enough to stack people like cordwood, you're not overpopulated.
Ever been to Seoul? I have. People live there pretty well.
It's crowded, yes. But the landmass of the earth is very very large. And most of it is empty for miles. Hundreds and thousands of miles.
I take it you don't like math.
The earth and all that was on it was given to us to husband and steward. If we do that well, terra could support over 100 times the population we have now.
Be fruitful. Multiply.
/johnny