I’ve gotten more death threats in the past week than probably the average politician does — all because I wrote a column for The Post with the online headline “NYC Is Dead Forever: Here’s Why.” I presented facts. Plus, I told the story of my own lifelong love affair with the Big Apple and lamented its impending demise. Now Jerry Seinfeld — sitting in the comfort and safety of his Hamptons mansion, with probably five dozen rare Italian sports cars in the garage — has written a response in the New York Times calling me a “putz” and insisting...