Because it's somewhat antiquated and has been overplayed for 30 years

Edit: >50 years

In addition to the comments here about the lyrics, IMHO it is a one-chord song and boring. Most of Burton Cummings' songs are much more interesting musically, e.g. "Undun."

Three guesses?

Perhaps because there’s a big dose of misogyny intertwined with the critique of American Exceptionalism.

Think about how the song would play with genders reversed.