That's only true if we hold the population constant, and get everyone to scrunch together onto smaller lots built taller.
The main aim of density is to turn cities of a million into cities of ten million, not to just stick with a million and have birds chirping in parks everywhere you go.
The main aim of density is to turn cities of a million into cities of ten million, not to just stick with a million and have birds chirping in parks everywhere you go.