Blame Canada Meaning

(Can we verify(+) this sense?) (US, idiomatic) A catch phrase for shifting attention away from a serious social issue by laying responsibility on Canada.

Example: 2004, The Mockingbird Foundation, The Phish Companion: A Guide to the Band and Their Music, page 113
  So, if you don't like this performance, blame Canada!
2005, Howard Lyman, Glen Merzer, Joanna Samorow-Merzer, No More Bull!: The Mad Cowboy Targets America's Worst Enemy, Our Diet, page 23
  National Cattlemen's Beef Association immediately resorted to a blame-Canada-first strategy, suggesting that US trading partners should now reopen their borders to unfairly maligned American beef.
2006 February 18, "Blame Canada! Again, for Latest Wintry Blast Perhaps It Will Snow in Modesto", Modesto Bee
  A cold rainstorm from Canada swooped into the Northern San Joaquin Valley on Friday morning
2007 November 14, Lewis Lazare, "Ads are 'sno' big deal" Chicago Sun-Times
  We surely can't blame Canada. Nike, we suspect, is where we must point the finger for what has become the somewhat too familiar norm in television advertising put forth by major global sporting goods brands.
Used other than as an idiom: see blame,‎ Canada.
2009, Jeff Rose-Martland, Game Misconduct[1], page 83:
  "It seems like every time the US can't get its act together, instead of looking at themselves to solve the problem, they blame Canada." "Thanks for your opinion Bill. Petra, our lovely producer, will cue up 'Blame Canada' from the soundtrack to South Park […] "