I appreciate the tact taken by the writer in general, despite deeply disagreeing. However the gross generalizations and myopia of the argument are clear enough from the closing lines:

I wonder if the massive shift in urban vs. rural living over the past 200 years has happened at the expense of our natural inner urge for open space. Am I bad because I want to live on land that otherwise would have been used for hay farming?

This extrapolation, that humans innately desire to live apart from one another, is a bold claim and directly refuted by the immense populations of voluntary urban dwellers. For certain, pro-density arguments against car-centered development can suffer from the inverse generalizations, and it should be called out in either case.