I have sometimes wondered if the The White House/Wall St cabal has had something similar in mind for North America. It would explain the open border with Mexico and their seemingly celebrating the flood of illegals pouring in from Mexico and Central America. Do they want so many from Latin America in the US so as to somehow justify a merger?
As for Canada, guns are arguably the largest cultural difference between the two countries. If they could somehow regulate guns into a lesser presence in the US it would make a merger more palatable to the Canadians. Before anyone says that isn’t possible, we are only one Supreme Court justice away from the 2nd Amendment being gutted. And the left is looking forward to it.
In the end though, what I suggest here is just the table setting waiting for the right crisis to bring it into the open.