Having spent a decent amount of time in both mainland China and Hong Kong, and living in San Francisco and previously elsewhere in the USA, I can definitely relate. So many things about China feel much more modern than the USA. I get better cell phone service on top of remote mountains in China than I do at my home in downtown San Francisco. Public transit is light years better there as well. Certainly there are things that are worse in China, the main one being air quality, but often coming back to the USA after an extended trip in China or Hong Kong is quite disappointing as I reacclimate to our crappy infrastructure.
The situation at the moment is a bit difficult in that reducing some of the emissions will actually result in more pollution, since the pollutant mix undergoes chemical reactions and some components deplete others.