[cardanome]

I don't get why I am getting such emotional responses.

Most of the noise in cities comes from cars, that is a fact. Even dense cities can be fairly quiet. I suggest watching this video: https://www.youtube.com/watch?v=CTV-wwszGw8

Plus China has probably not the best building codes, the problem can be further improved by having proper sound isolation in homes.

Dense cities mean you will have everything in walking distance. There will be much more space for parks and other areas of recreation.