What once bound most of Canada was a weak one-way alliance with the USA.
This is no more, in English Canada, and never was in Quebec. Ontario was once the Canadian Dream....but, in todays world, is lucky to hold it's own. Alberta seems to feel more kinship south...and tends to lead the Praries lately. BC is a Pacific and increasingly looks east and south ...in population and otherwise.

Eastcoast cultural and true economic links are south....not west...and I suspect we will see this evolve greater...as the rest of Canada seeks it's own destiny.
However, while an east coast Canadian has similar historic links (and yes even genetic links) with New England....it ends there....there has been much water past to change us into different folks, with different perspectives on life, society, culture, and economics. But, I suspect closer ties will evolve in my lifetime.