I think his op-eds are dumbed down to the 10th grade level. And since Kurgman is basically writing these op-eds full-time (in addition to his speaking tours) he has his own political agenda (we're all biased, as we are human).
Sure he won the Nobel Prize for Economics.
But that doesn't mean we laymen and laywomen need to agree with him. As usual in the field of economics, there are many that disagree with his economic and political views.
I don't even read him anymore. I cannot stomach it.