[eternallyme]

To have a Tier 1 soccer league entirely based in Canada would be ridiculously unbalanced as teams from rich major cities like Toronto and Vancouver would have an enormous advantage, plus there are too few major cities in Canada to support a high-end league.

I'd argue that Canada should have a Tier 2 or Tier 3 regional league as a national league in conjunction with similar US leagues, with promotion to the MLS (or relegation to lower Canadian leagues) possible.