Is the United States in self-destruct mode?

Here’s a strange question: What if the greatest threat to the United States is our own Constitution?

Even if you think the American Constitution is the most brilliant political document in human history (and it arguably is), it was written in the late 18th century, which means it’s a product of a very different world than the one we currently inhabit. 

America was an agrarian slave society at the time of the founding. The citizenry was confined to white, property-owning males. People lived in small...