An interesting fact about the origins about the British coming to the USA is this;
The New England states saw the Pilgrims who sought religious freedom, and where against any kind of human bondage- puritans as they where.
Later on the Catholic Irish came in- and where generally very liberal.
New York, PA, and New Jersey saw the Dutch, Swedes and Quakers, Hugonets, and Germans- with a more similar ethic as New Englanders.
The south saw more Scot-Irish (what I am partially
) and other less 'liberal groups' from England and the British Isles) that sought a new life based more on economics then religion and other 'freedoms'. It might be fair to infer this into the equation of the differences between the north and south 160 years ago.