Consequences of A Divided America?

In an america, divided with a 1600/1700 POD, what would be some consequences, one I thought of would be a smaller North American Economy, due to the fqact that to get to Atlanic to Pacific, you would have to pass through 10/15 different states.

Some of the states of this world are:
Scottish Republic in South Carolinas.
Connecticut.
Aristocrat Republic Virginia.
Stretch of "Cotton Republics" from Louisiana to Top of South Carolina.
 
Scottish Carolina... Sounds terribly familiar to Viva la Revolucion, Bacon

Are you up to something I should know about? :p
 
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