A fellow secessionist

Eli Dourado: Given what we know about optimal country size, a monolithic America makes less sense today than it did a century ago. What made America into the superpower that it is today is its massive internal free trade area. Now that trade barriers have declined worldwide, this is less of an advantage than ever before. It’s not at all clear that this diminishing advantage outweighs the cost of our divisive politics based on unshared cultural assumptions.

Don't need cultural segmentation to prove the point.  
Simply enough to show the channel flow to and from the Swamp requires too much volatility during each regime change.  Just look at the 2 trillion dollar swap we did since the election.