I'm glad none of you people had Pete Rozelle's or Lamar Hunt's ear. Better to keep football just around the Great Lakes and a couple of east coast cities. Or Walter O'Malley's, certainly the MLB should just consist in a quadrant of the country defined by the Atlantic, Canada, the Mississippi, and the Ohio. Teams in LA, or even Houston, or Atlanta? Dubious fans there.
Can the a pro sports league make it on just Canada? Sure, its called the CFL, average pay is about $80K, less Canada's confiscatory taxes. Add in the US border states, every one of which has consistantly lost population for over 50 years, and what you have is a minor league of no interest to US networks o US national advertizers.