> You can also design things so that people are not crammed in at a rate of hundreds of thousands per square km.

Yeah I mean that's like 99.9% of the surface of the world, nobody is preventing you to go live your dream. We're specifically talking about cities, a city without population density is not a city by definition

For some reason, urbanists like to attack suburbs while also saying that everything is so far apart and takes so long. If you want to live in a city, live in a city, but don't pretend that it's the only way to live.