I think that Wizard of Oz was about the communist underground....ie it starts out on the “animal farm” and Dorothy “falls in with the pigs”......
The theme is “the heartland” where Kansas is centrally located as the nation’s breadbasket......Kansas State Fair....”fair state” the issue was “fairness” and the Emerald City represents the commie Utopia....
Witch represents religion——”poppies...poppies” and they fall asleep from her spell, ie “religion is the opium of the people”. Flying monkeys? Demons...and reference to Scopes trial....
The witch is “all wet” and therefore she withers away....
Good witch of the north represents “Reason”...and she comes down into the underworld and brings Dorothy back up to the upperground...conciousness, etc
and the Wizard looks like Stalin and is a “blow hard” and therefore flies away in his balloon at the end....
Dorothy is “healed” at the end......as “man does NOT live by bread alone.....but by every word from the mouth of God”....
Now if you posit that the whirlwind/tornado/swastica in the Wizard of Oz is Hitler and the Nazis...then you can understand why the weather causes the commies to scurry to the underground.....