On the face I agree with that....but the NAU as a whole could be sold as adding "competition and safety"....and probably will be presented that way....(ie: "trust me people it will be better for us all if we remove borders and create one big happy continent".) I'm a pilot and you don't have to create one large air traffic control system to have safe and seamless transitions between sovereign systems. We do it all day long when transitioning one controlled airspace system to another within the US.
I’m going to hold off on forming a firm opinion for now. I need more info, and I want to see it in writing.
I do see us getting left behind and, getting the short end on global trade, and that bothers me...a lot. I think we need to get in front of this, no matter which way it goes.