Hmm, I guess this argument makes sense for the more hippie-oriented types, but as an urbanite the idea of having the convenience of a big city without the overcrowded downsides has me downright drooling.

I go camping once a year to connect with the environment; I wouldn't want to spend the 360-ish other days that way.

There would be a lot of more places to go camping to if everyone lived in such cities. See how Manhattan would look like: https://www.youtube.com/watch?v=rs-10eEGEe0