Plow under

Here is an excerpt from an old tune by the Almanac Singers (1941: Woody Guthrie, Lee Hays, Millard Lampell, Pete Seeger):

Any ignorant mule does know
Better than to step on a cotton row
But there ain't no mules in Congress, so
Plow the fourth one under.

CHORUS
Plow under, plow under
Plow under
Every fourth American boy.

Now the politicians rant
A boy's no better than a cotton plant
But we are here to say you can't
Plow the fourth one under.

FINAL CHORUS:
Plow under,
(Don't you...) Plow under
(Don't you...) Plow under
Every fourth American boy.
(Now, don't you...) Plow under,
(Don't you...) Plow under
(Don't you...) Plow under
Every fourth American boy.

Amazing how the more things change the more they stay the same. It's a catchy tune too, and easy to adapt:

All we people refuse to learn
The Earth itself is about to burn
We'll drive to death in an SUV
Plow the fourth one under.