As a resident of New York City living about an hour's drive from the Canadian New England border, I wonder how the New England region could have been part of the USA instead of joining Canada in 1780. It might be ASB because the majority of New Englanders sided with the British.
Also, would there still be Irish, Dutch and Potugese immigration to an American New England in the mid-19th century?
And could a Roman Catholic still be elected President of the United States in 1944? Of course, a Catholic became Prime Minister of Canada in 1943.