Ya know, I'm usually a fan of alternative history and "what if" kinds of futurism, but these people can't be serious. A breakup of the United States, let alone one that sees the US divvied up between Canada, China, the European Union
and Mexico isn't even remotely possible in the next year or even in the next decade. Even with a 50+ year time horizon you have to be pretty imaginative to come up with a plausible course to a scenario remotely like this--and that's still ridiculously unlikely.
- Also, what does "European Union" even mean here? The EU is composed of individual member states. Is the former US Northeast ruled directly and collectively from Brussels in this scenario? Is that an independent nation that has joined the EU?
The author, and the "analysts" he links to are either trolls or fools. Possibly both.