The wobblies anticipated Portal's "The Cake is a Lie" with "Pie in the Sky":
Work and pray, live on hay
You'll get pie in the sky when you die, that's a lie
(it's also bleakly amusing to have learned from Youtube that Paul Robeson —up until they cancelled his passport— sang different words to "Old Man River" in the US and in the USSR)
On a lighter note, it seems US kids do still sing "This Land" https://www.youtube.com/watch?v=rRnHx3yVuf4