Technically NO, only because there shouldn't even be a choice for the American people to join a North American Union. Such a move is impossible as the Constitution is written. Such a move would render the Constitution null and void. As a result, we would have broken or the government would have broken the social contract between the people and the government made when the country was founded. But aside from that technicallity, the vote on that poll is a massive YES!!!!!!
A North American Union is a forfeiture of sovereignty. As such, the Constitution cannot be "downgraded" to that of a "state" constitution - it is a document that deals with a sovereign state.
I disapprove of referendums on matters of liberty, and I certainly disapprove of these clowns mixing us into a continental nation when we cannot even get basic reforms or compliance according to our existing Constitution.
This is all disgusting. The writing is on the wall, we will have a North American Union. Part of that plan will be to finally ban guns in America. Or at least ban them down to the level of Canada or worse to make us compatible (lowest common denominator) with the rest of the "union" ....