Conjecture. So I'll add mine, the nation would most probably end at the Mississippi. Spain and or Mexico would definitely rule the far west and France the center. The wars involving the three would have been interminable, and territorial claims unending even to this day. Canada would not have been an entirely English colony as it's territories would have been split as well. Never matter without the combined might of our modern united nation, we well may speaking German or Japanese, or most probably not even born to write such drivel.;-)

You never responded to my PM and also: Nice post

Over the top trying to be edgy but it's just bad.

The problem would be that instead of a civil war over slavery there would be a war between the US and Britain so that the US could maintain their right to own slaves. The statement that the American Revolution being a mistake would be true if it meant that Britain could still control the US until it became independant along with Canada. But that is a nitty-picky criticism to what overal is a thought-provoking article.