Earlier quoted context omitted.
Sprawling suburbs are the opposite of nature. A single large park inside a dense city is far more nature-rich than acres upon acres of suburban lawns are.
You've apparently never actually been in a suburb. They typically have random unkempt forests behind each row of houses, and not just a little bit. Like you need a serious walk between houses on different roads, and all of that is a long unbroken piece of nature. The front of the house near the road has the lawn, but there's a LOT more to suburbs than that. 2 minute walk from where I lived in a suburb was a "forest"…
The issue with lovely semirural living is that there literally isn't enough space on Earth for everyone to sustainably live like that. It's a privilage to live in house surrounded by woods with grocery store a 15 minutes drive away. Many people (not you, congrats) need to live very close to one another, and the best, happiest, most sustainable way for them to do that is in a dense city with good transit, good sidewalks, and limited auto traffic.
That is all not to mention the economics of suburban and semirural living. Those nice roads with little traffic? They are crushingly expensive. Towns would not be able to afford them if it were not for huge federal and state subsidies, which are largely funded by... wait for it... tax revenue from dense cities.