The problem is that our economic advantage through association is great. However, the world according to the USNational interests is a very cruel place filled with war, destruction and gross inequities.
Mind you we already have inequity in Canada, lack of housing, lack of food security, lack of fresh water on indian reserves, lack of income distribution its not all roses and maple syrup.
The notion of economic union is also a non starter given the 44 Trillion USD debt ( thats a Gazzilion DOLLARS CAD)
It is a strange arrangement. We need so much from the USA including sunny winters. The states need our resources.
The US has 4 lanes coming to the border. Perhaps they will just take what they need while our fractious parliamentarians dither.