Forget NAFTA and the TPP.
An official response to both Brexit and the Fiery Chetosaurus could perhaps be to propose a trade agreement between commonwealth nations that excluded him. Just to set him off. Surely the benefits would be felt by all of us. Having left the European Union, Britain is now legally free to propose or involve itself in a free trade agreement between Commonwealth nations (source).
There aren’t really other ways that it affects us. The Brits made their choice. We live in and die for a “democracy” or at least the idea of one.
Let it play out.
Canada is geographically the largest commonwealth nation. We are the second largest country in the world. Our philosophy and values as a nation are in a prime place to be exemplified by entering into a fair and equitable trade agreement that sets up a cohesive corruption-free institution that spans each of those countries to the ultimate benefit of the citizens of each country; not the corporations that already span them.
REFERENCE: List of Commonwealth Countries