Moe sent in this article from Toronto about city living. I was amused that the commenters there are the same as commenters here, interpreting the suggestion that some people choosing to live where they can walk to work might be good for commuters is a demand that all people make similar decisions.
Urban dwellers are your friends, car commuters! They own fewer cars and are less likely to get in your way during your morning commute. No one is forcing you to join them.