Dead wrong.
The origins of "This Land" is that Woody Guthrie was irritated by
Irving Berlin's "God Bless America,"
sung by Kate Smith, which seemed to be endlessly playing on the radio in the late 1930s. So he wrote the song as a retort, at first sarcastically calling it "God Blessed America for Me" before renaming it "This Land Is Your Land."
"This Land Is Your Land" is a very different song from "God Bless America".
But most don't know it, as these original "subversive" verses from Woody Guthrie's manuscript are usually left out of "This Land":
As I went walking I saw a sign there
And on the sign it said "No Trespassing."
But on the other side it didn't say nothing,
That side was made for you and me.
Nobody living can ever stop me,
As I go walking that freedom highway;
Nobody living can ever make me turn back
This land was made for you and me.
In the squares of the city, In the shadow of a steeple;
By the relief office, I'd seen my people.
As they stood there hungry, I stood there asking,
Is this land made for you and me?